Statement: This book is so prepared that even a layman can study science in the absence of a teacher.Assumptions:A layman wishes to study science without a teacher.A teacher may not always be available to teach science.A layman generally finds it difficult to learn science on its own.

Statement: This book is so prepared that even a layman can study science in the absence of a teacher.
Assumptions:
A layman wishes to study science without a teacher.
A teacher may not always be available to teach science.
A layman generally finds it difficult to learn science on its own.

Only I and II are implicit

Only II and III are implicit

Only I and III are implicit

All are implicit

Explanation:

Answer: Option B
Explanation:
Clearly, the statement is made to impress the usefulness of the book. It does not mention the desire of a layman. So, I is not implicit. Also, the book is intended to guide one when a teacher is not available. So, both II and III are implicit.