What caused protests in South Vietnam during the presidency of Ngo Dinh Diem?

ADiem started reforms that stripped power from the wealthy landowners.

BDiem began policies that were oppressive to Buddhists.

CDiem ran as a candidate in the Vietnamese reunification elections.

DDiem established trade agreements with hostile nations like China.

Verified Answer :

"Diem began policies that were oppressive to Buddhists" is the one among the following choices given in the question that caused protests in South Vietnam during the presidency of Ngo Dinh Diem. The correct option among all the options that are given in the question is the second option or option "B".

Answer:

Diem began policies that were oppressive to Buddhists

Explanation: