Which revision best corrects the errors in the given sentence?

I'll do something quiet such as reading, gardening, or bird-watching instead of riding roller coasters with you.

A.
I'll do something quiet—such as, reading, gardening, or bird-watching—instead of riding roller coasters with you.

B.
I'll do something quiet: such as reading, gardening, or bird-watching—instead of riding roller coasters with you.

C.
I'll do something quiet: such as reading, gardening, or bird-watching instead of riding roller coasters with you.

I think it's C.

Question

Which revision best corrects the errors in the given sentence? 

I'll do something quiet such as reading, gardening, or bird-watching instead of riding roller coasters with you.
 
 A.
I'll do something quiet—such as, reading, gardening, or bird-watching—instead of riding roller coasters with you.
 
 B.
I'll do something quiet: such as reading, gardening, or bird-watching—instead of riding roller coasters with you.
 
 C.
I'll do something quiet: such as reading, gardening, or bird-watching instead of riding roller coasters with you.

I think it's C.

anonymous · Answer

I'm gonna have to go with A, because look what happens:

If you take the examples off the sntencee, you get this:
 I'll do something quiet instead of riding roller coasters with you.