This is a question with answer options. Goal: To slice a lemon in half,

Which of the following methods is more reasonable for accomplishing this goal?

Available choices:
+using the blade of a chef's or paring knife, push down into the lemon on a cutting board.;
+using a wooden mallet, hit the lemon on a cutting board until it splits in two pieces.;...I think the answer is
using the blade of a chef's or paring knife, push down into the lemon on a cutting board.