Respuesta :
The answer is how many,as an adverb typically describes how things are done in a certain manner,the place,time,etc;
ANSWER:
(A) How many
EXPLANATION:
An adjective describes how something was done, about its manner or where it was done or when.
For Ex: The boy runs fast. In this case fast describes the manner in which he was running. Hence it is adjective.
Another Ex: She was selling fruits near the clock tower. here clock tower shows the place where it happened.
HOPE IT HELPS....