It looks like you're asking to simplify expressions listed as A, B, C, and D; however, there's no expression for C. Let’s simplify the given expressions:
A. \(6x + 35\) cannot be simplified further since there are no like terms to combine.
B. \(6x + 1\) also cannot be simplified further for the same reason.
C. (No expression provided)
D. \(43x\) is already in its simplest form.
If you have any specific operations you want to perform or if there’s an expression for C, please let me know!