Select the letter of the term that identifies the function of the
phrase in parentheses in the following sentence:
Paper diapers are made more absorbent by (adding potato starch).
a. adjective e. object of a preposition
b. adverb f. direct object
c. subject g. indirect object
d. predicate nominative h. appositive
f. direct object
The function of the phrase "(adding potato starch)" in the sentence "Paper diapers are made more absorbent by (adding potato starch)" is to indicate the method or way in which the paper diapers are made more absorbent.
Based on the given options, the letter that identifies the function of this phrase is b. adverb.