Your grammatical skills are that of a 6 year old child
The word that fits the clues is "H." It has both horizontal and vertical symmetry, as it looks the same when flipped along either axis. In contrast, the letter "Q" has vertical symmetry but no horizontal symmetry, while the letter "O" exhibits horizontal symmetry but no vertical symmetry.
Both
Horizontal only
The letter D does not have a vertical line of symmetry.
Yes T has a vertical line of symmetry
Yes the letter A has a vertical line of symmetry
The letter A has one vertical line of symmetry
It has one line of vertical symmetry
Both
It has 1 vertical line of symmetry
Yes the letter A has a vertical line of symmetry.
It has one vertical line of symmetry through its middle
Horizontal only
The letter D does not have a vertical line of symmetry.
Yes T has a vertical line of symmetry
The letter T has one vertical line of symmetry.
one. It is a vertical line of symmetry which splits the A in half.