Which of the following is important in a two-column proof?

a) a list of all theorems
b) staircase logic
c) order
d) detailed explanations for each step

option: C is correct.

( c) order)

Step-by-step explanation:

While we are writing some proof or we can say a two-column proof than the order in which the proof must be done should be taken care.

As any proof always have some desired steps so we can't interchange those steps as one step is derived from the other so the order is very important.

Hence, option C is correct. ( C) order)