سوال ۱۹ کنکور ارشد مدیریت کسب‌وکار (MBA) ۱۴۰۱

Choose the underlined part that must be changed for the sentence to be correct. The four marked parts are listed as the options.

Businessmen stepped forward with offers to fund his education and projects, and with money which donated by them, he was able to put his cousin and several friends back into school and pay for some medical needs of his family.