Acronyms use of each word in a phrase
a. first two letters
c. last two letters
b. last letter
d. first letter

The correct answer is D. first letter.

Acronyms are forms of abbreviations in that they shorten a word (or rather, a cluster of words) by only taking the first letter of each of the words. Acronyms are often used for names of organizations, so as to avoid having to write or say the entire name over and over again.

Some examples of acronyms would include NATO (North Atlantic Treaty Organization), GIF (Graphic Interchange Format), USA (United States of America), etc.

explanation:

gay

answer: group ii. when the root is a full word except for a final e, the forms usually are spelled with -able.

explanation: the word will be deplorable. -able will be used with the word 'deplore-'. the group ii is when the root is a full word except for a final e, the forms usually are spelled with -able is used for the word deplore- because the word deplore- has 'e' at the end of it.