Question

S-subject, DO-direct object, SC-subject complement, OP-object of preposition

The chairman heard what was said about the program.
S
OP
SC
DO

Answer 1

Answer: DO (Direct Object)

Explanation: I just did the lesson that has this question on it and I got it correct.

I don't know what the person above me was trying to do, but all they did was answer a question with a different question on the lesson.

Answer 2

I have seen this question before this was how the sentence was written...
The chairman heard what was said about the program. The items in bold are "DO". Hope this helped!