The writer is considering deleting the phrase “by using the heat to kill the viruses and bacteria on the instruments” from the preceding sentence (and placing a period after the word inside). Should the phrase be kept or deleted?
F. Kept, because it clarifies the claim made in first part of the sentence.
G. Kept, because it strengthens the paragraph’s focus on viruses and bacteria.
H. Deleted, because the essay is mainly about dentistry, not spreading diseases.
J. Deleted, because the phrase fails to add new or useful information.