The correct answer is: Both I and II are implicit.
Shalini has applied for a loan of Rs. 1,80,000 and has mortgaged her house to the bank. This means that she is willing to give up her house if she does not repay the loan. This suggests that the bank is willing to give loans of this amount and that it accepts houses as collateral security. Therefore, both assumptions I and II are implicit in the statement.
Assumption I is implicit because the bank would not have given Shalini a loan of Rs. 1,80,000 if it did not have a practice of granting loans for this amount. Assumption II is implicit because the bank would not have accepted Shalini’s house as collateral security if it did not accept houses as collateral security against such loans.
The other options are incorrect because they do not take into account all of the information in the statement. Option A is incorrect because assumption II is also implicit. Option B is incorrect because assumption I is also implicit. Option C is incorrect because both assumptions are implicit. Option D is incorrect because both assumptions are implicit.