The number of letters in the word S N A I L that have line symmetry is

Answer: c) 2

Explanation (standard block capitals):

• S → no line makes two identical halves. 0 lines.
• N → slanted diagonal prevents any mirror split. 0 lines.
• A → mirror along the vertical axis gives two equal halves; the crossbar breaks horizontal symmetry. 1 line.
• I → rectangular form mirrors across vertical and horizontal axes. 2 lines.
• L → right angle shape has no mirror line. 0 lines.

Letters in “S N A I L” with line symmetry: A and I.

Count = 2.