For what do you need to drop the final e before adding suffix A advise - able B clue -less C Manage -ment D care ful?

Here's the breakdown of when you drop the final "e" before adding a suffix:

* You drop the final "e" before adding a suffix if the suffix begins with a consonant.

Let's look at your examples:

* A) advise - able: The suffix "able" begins with a consonant ("a"). You drop the "e" and add "able" to form "advisable".

* B) clue - less: The suffix "less" begins with a consonant ("l"). You drop the "e" and add "less" to form "clueless".

* C) manage - ment: The suffix "ment" begins with a consonant ("m"). You drop the "e" and add "ment" to form "management".

* D) care - ful: The suffix "ful" begins with a consonant ("f"). You drop the "e" and add "ful" to form "careful".

In summary, you need to drop the final "e" before adding the suffixes "able", "less", "ment", and "ful" because they all start with consonants.