You are choosing numbers from the set S ={A, B, C, D, E, F, G, H}. Let x = the number of ways to choose 3 letters from S without replacement (order doesn’t matter).

Which option below is equivalent to x?

The number of ways to choose 4 letters from S without replacement
The number of ways to choose 5 letters from S without replacement
The number of ways to choose 6 letters from S without replacement
The number of ways to choose 7 letters from S without replacement