Statement : Every IIT offers B.Tech. and M.Tech. courses.
Assumption I : B.Tech. and M.Tech. courses are offered only in IITs.
Assumption II : IITs are meant for B.Tech. and M.Tech. courses only.

The correct answer is (D) Neither assumption I nor II is strong.

• Logical Principle: An assumption is an unstated premise that must be true for the given statement to hold. It involves identifying exclusive conditions or intended purposes not explicitly mentioned.
• Step-by-step Deduction: Assumption I posits that courses are offered only in IITs; however, the statement says "Every IIT offers..." but does not restrict these courses solely to IITs. Assumption II suggests IITs are only meant for these courses; however, the statement describes the offerings but does not imply that IITs provide no other courses or facilities.
• Verification: Since the statement provides positive information about IIT offerings without making exclusive claims about other institutions or the full scope of IIT activities, both assumptions go beyond the scope of the original statement. Thus, both are logically invalid.