25 o because sOme of them are perpendicular
E F H I(Only if you put lines on the top and bottom)M N Z The answer is 7.
It really depends on how you write the letters. I count nine if there're all uppercase, but that's my handwriting.
Letters that have parallel line segments are H, E, F, M, and N
26 a b c d e f g h i j k l m n o p q r s t u v w x y z