The correct answer is: Only assumption I is implicit.
The statement does not provide any information about whether Deepak has read each and every book that he has purchased. It is possible that he loves and cares for books, but does not read them. For example, he may enjoy collecting books as a hobby, or he may use them as decoration in his home. Therefore, assumption II is not implicit.
However, the statement does provide some information about Deepak’s love and care for books. It says that he has a large collection of books, and that he keeps on purchasing new books to add to his collection. This suggests that he enjoys reading books, and that he values them. Therefore, assumption I is implicit.
In conclusion, only assumption I is implicit in the statement.