Respuesta :

If a star appears to be very red, it would be in the spectral class "M" since that is where it is the lowest temperature, with the slowest waves.

Answer: M

Hope this helps!
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
(The answer is M in case you couldn't tell)