the will be used before poor because – the (Def. Art.) is used with Adjectives to refer to a thing or a group of people described by the Adj. Look at the examples given below :

The poor always suffer

↓     ↓

Def. Art. Adj. (refers to a group of people who are poor) He is collecting money for the blind.

                                                                                                                                                     ↓

                                                                                                                                                Def. Art.

blind refers to a group of people who are blind.

hearing will replace hear because – Phrasal Verbs are always followed by Gerunds. Here, look forward to is a Phr. V. Look at the examples given below :

He was accused of smuggling contraband goods.

                  ↓                   ↓

                 Phr.V            Gerund

He insisted on proof-reading the article again.

                  ↓                   ↓

                 Phr.V            Gerund

at will replace by because – Shocked always agrees with at (Prep.) at is used with Adjectives for showing the cause of something. Look at the examples given below : They were impatient at the delay. She was delighted at the result. Here, shocked is the Adj. and it is indicating the Cause (reason) of the actress’s shock. Hence, at the news of her dog’s death is the right usage

Unconditional dedication" implies unwavering commitment and loyalty to the company regardless of circumstances. While support, attachment, and love can also be relevant in the context of an employee's relationship with their company, "dedication" specifically captures the idea of steadfast loyalty and commitment. Therefore, option 2 is the best fit for the sentence.

The most appropriate option to fill in the blank is:

Official

Explanation: In this context, the word "official" suggests that the medicine being administered is recognized and approved by the relevant authorities or medical professionals. It implies that the medicine is legitimate and prescribed within the official protocols of medical practice.

The other options do not fit well in the context:

"Eminent" means distinguished or noteworthy, but it doesn't directly relate to medicine in this context.

"Alternative" suggests a different option, which may not align with the doctor's directive.

Insightful" refers to having a deep understanding or perception, which doesn't make sense in the context of administering medicine.