Yes, from left to right.
A capital "B" has one horizontal line of symmetry.
yes it has one * * * * * No, the lower case letter has no line of symmetry.
The capital letter H does B, C, D, E, H, I, K, O, and X have a horizontal symmetry line.
q and b
their are many like B; D; C; X; A; O; I.....
SYMMETRY
The answer does depend on the font, but: B, F, G, J, L, P, Q, R and S. In a few fonts, for example, the top and the bottom of B are the same size so the letter does have an axis of symmetry.
In the good old days (when I was at school and was taught about rotational symmetry) it had one, but the modern definition is to say it has none.
Yes capital A has one line of symmetry or 'mirror image'
B, C, D, E, H, I, K, O and X
A, H, I, M, O, T, U, V, W, X, and Y all have vertical symmetry. B, C, D, E, H, I, K, O, and X all have horizontal symmetry.
Yes, the capital letter N has rotational symmetry but no lines of symmetry: