Some of it relates to your particular school: how heavy is the work load for Lang & US Hx in your school?
Some of it relates to you: are you a strong reader/writer? are humanities classes generally happy for you?
Some of it relates to your choices: what are the options if you don’t take the AP level? is there an honors level? is the non-AP option less fun / mostly for less-motivated students?
And finally, why AP CSA?
Last night one of my collegekids- who went to famously rigorous undergrad and grad schools, and who is now in a very intense job- said that she thinks parents and students don’t realize just how hard Grade 11 is for academically ambitious kids. Between challenging classes and all the ECs that are expected for admissions to selective US colleges and the need to be ‘perfect’ all year, she said it’s the toughest year she’s every had work-wise, and only her friends who did med school / internships says they have had anything comparable since then.