I dont know what rule u r talking about...but I can give u a sentence using the compound subject " clowning and crumping ".
Clowning and crumping are styles of dance that originated in the 90's.
Answer: The 2nd one, he is doing so through an action, it's not necessarily coming out and saying "He pays attention" it's indicating it through what his actions and thoughts are.
Explanation:
B.
It is difficult to record points made during a meeting on an electronic slide.