Fill in the blank with the suitable Modal.

Since the books are with my friend, I _________ be able to lend them to you.

A. cannot
B. should not
C. will not
D. would not

Choose the correct answer from the options given below:

C only

The correct answer is: C only - will not

Here's why the other options are not suitable:

• A. cannot: This implies a permanent inability, which might not be true if you expect to get the books back from your friend eventually.
• B. should not: This suggests it's morally wrong or inappropriate to lend you the books, which doesn't align with the reason given (they're with your friend).
• D. would not: This refers to a hypothetical situation in the past, whereas the original sentence talks about the present and future possibility of lending.

Therefore, "will not" accurately conveys the meaning of being unable to lend the books due to their current location, without implying any judgment or permanent inability.