Question

1. read the advertisement.

mr. sparkle is a cleaning product. it cleans floors, walls, and countertops without damaging them. it does not cost very much. it is available at supermarkets.
which revision does the advertisement need?
the omission of unnecessary details
the correction of misspelled words
the recasting of sentences that are not parallel
the addition of adjectives and adverbs

Explanation:

The advertisement is grammatically correct, has no unnecessary details, and uses parallel structure. It is functional but lacks persuasive descriptive language; adding adjectives (e.g., "powerful cleaning product") and adverbs (e.g., "quickly cleans") would make it more engaging for an advertisement.

Answer:

the addition of adjectives and adverbs