Answer:The pronoun "we" does not match its antecedent "one" in person or number.
Explanation: Pronouns are words used as substitutes to nouns, examples include WE,HER,HE,THEY etc they must support their antecedent(the preceding word). In the case of the highlighted question "WE" can not be used as a substitute for "ONE'S" in that sentence. ONE'S is a singular word while "WE" is a plural word,hence the sentence was not properly made. The right pronoun to be used in the place of "ONE'S" should be a singular pronoun.