Since 1986, when the Department of Labor began to allowinvestment officers' fees to be based on how the funds they manage perform, several corporations began paying their investment advisers a small basic fee, with a contract promising higher fees if the managers perform well.
(A) investment officers’ fees to be based on how the funds they manage perform, several corporations began - Verb tense error - need Present perfect tense ; No antecedent for Pronoun they
(B) investment officers’ fees
...
(A) investment officers’ fees to be based on how the funds they manage perform, several corporations began - Verb tense error - need Present perfect tense ; No antecedent for Pronoun they
(B) investment officers’ fees
...
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