Answer: the answer is C, a list of all the sources used to write a report.
The answer is Collaborate.
This is probably a joke but I'll answer anyway
By 'cheeks' they mean buttocks so by "making them clap" is referring to them being so big/thick that they clap or make noise when you walk or move around or something.
I probably got played lol but whatever
<span>He explored human emotions and expressions in his work</span>