Question

which letter in the word happy has an order 2 rotational symmetry?
o h
o a
o p
o y

Explanation:

Rotational symmetry of order 2 means an object looks the same after a 180 - degree rotation. The letter 'H' looks the same when rotated 180 degrees. The letters 'A', 'P', and 'Y' do not have this property.

Answer:

A. H