Statement: With a sense of sincerity, quality teachers can improve the society.
Assumptions:
1. Quality teachers are sincere.
2. Sincerity in teaching pays.
Answer: B
The statement emphasises that quality teachers can help reform society if they are sincere enough in teaching. This implies that quality teachers may or may not be sincere. So, I is not implicit. However, II directly follows from the statement and so it is implicit.