Answer:
D. to help users correct spelling mistakes.
Step-by-step explanation:
What is a spell check?
A spell check is the act of confirming the spelling of words. Ex: The cat is climving a tree. A spell check would find that climbing was spelled wrong in the example sentence and alert you.
A is incorrect because spelling practice is what you give when trying to learn how to spell. Spell check has nothing to do with practice.
B is incorrect because it discussed grammar. Grammar and spelling, while both things that should be checked, are different and spell check does not check for grammatical errors.
C is incorrect because spell check is meant to point out and fix typos, not quicken typing speed.
D is correct because a spell check seeks out any errors in spelling. So, a spell check corrects spelling mistakes.
E is incorrect because fixing spelling does not help to express thoughts clearly. It only fixes spelling. One can have perfect spelling and still have jumbled or confusing ideas.