Question

Use the suffix -ible when _____.
a final silent e is dropped from the root word
a final y changes to i in the root word
the root word is a complete word
the root word is not a complete word

Answer 1

i would say D

Answer 2

Words ending in -ible
When a word ends in -ible, it's less likely that the part before the ending will be a recognizable English word. Take permissible or audible, for example: ‘permiss’ and ‘aud’ are not English words.
This is only a guideline and there are exceptions to the general principle. For example, accessible and collapsible both end in -ible even though they are formed from the recognizable words access and collapse.
Here are some common words ending in -ible:

illegible; responsible; eligible; incredible; reversible; invincible; suggestible; contemptible; feasible; negligible; susceptible; convertible; flexible; ostensible; tangible; gullible; terrible; horrible; plausible.

Answer 3

so yes I would also say D :) lol

source: https://en.oxforddictionaries.com/spelling/words-ending-in-able-or-ible

Answer 4

Oh I thought it was C

Answer 5

so y'all got this one bye :)

Answer 6

i think it is C as well

Answer 7

.......

Answer 8

hmm this is a hard one, but i do agree with C :\

Answer 9

What @rzlearner said makes no sense with his choice of answer: D because what he said pretty much told you the answer is C......