In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements.

Q:

Statements:
 1. Some students are teachers.
 2. All teachers are boys.

Conclusions:
 I. All students are boys.
 II. Some boys are students.
 III. Some boys are teachers.
 IV. All teachers are students

• 1
  Only I follows.
• 2
  Only II and III follows.
• 3
  Only IV follows.
• 4
  Only I and III follows.