please check:

"¿A qué hora empieza el concierto de la orquesta?" " _____ el periódico, empieza a las ocho."
a. después de
b. según
c. antes de
d. es necesario

B?

Sra

To determine the correct answer to the question, we need to focus on the information given in the sentence. The sentence states: "____ el periódico, empieza a las ocho" which translates to "According to the newspaper, it starts at eight o'clock."

Based on this information, we can conclude that the missing phrase should indicate a source of information.

Let's analyze the answer choices:

a. después de (after)
b. según (according to)
c. antes de (before)
d. es necesario (it's necessary)

Out of these choices, "según" (according to) is the most appropriate option because it matches the context of the sentence. It indicates that the source of information being referred to is the newspaper.

Therefore, the correct answer is b. según.