Directions: In the following passage there are blanks, each of which has been numbered. Against each number, five words are suggested, one of which fits the blank appropriately. Find out the appropriate word in each case.
The tea plant, a native of Southern China, was known ___1___ very early times to Chinese botany and medicine. It is ___2___ to in the classics ___3___ the various names of Tou, Tseh, Chung. Kha and Ming and was ___4___ praised for possessing the viruses of ___5___ fatigue, delighting the soul, strengthening the will and repairing the eyesight. It was not only administered as an internal dose, but often ___6___ externally in the form of paste to ___7___ rheumatic pains. The Tao ists claimed it ___8___ mi important ___9___ of the elixir of immortality. The Buddhists used it extensively to prevent drowsiness during ___10___ long hours of meditation. 

Q:

Appropriate word will be at option (10).

• 1
  that
• 2
  these
• 3
  their
• 4
  our
• 5
  remote