El barbero le corta el pelo a
a. hombres b. abuelas c. mujeres

The correct answer is: A. hombres.

El barbero le corta el pelo a hombres.

Explanation:

In Spanish, we normally use the word barbero to say men's hairdresser (but also barber in English). With barbero we usually refer to a hairdresser who takes care of men's hair and beard. Apart from the haircut, the barber can shave or style men's beard.

When it is about women, then we normally say peluquero/a (hairdresser) and peluquería (hair salon). In general, it doesn't include beard care.

El barbero le corta el pelo a hombres.

Explanation:

The barber is the person whose occupation is to shave, cut and condition the hair . Barbershops were places of social interaction and public discourse. They also influenced helping to form the masculine identity.

In conclusion, the barber is the man whose job is to shave, cut and fix the beard, mustache and hair to men.