Which advancement singers develop a more intimate singing style? electric guitars microphones digital downloads spotlights?

The correct answer is:

Explanation:

Microphones were invented to help singers and speachers to increase the volume of their voices.

So the interpretation of singers were changing with the updates of the microphone.

Nowdays singers can barely whisper their singing with the microphone and listeners in a venue can hear perfectly.

for many centuries, the catholic church has been a patron of the arts. the church has used various scientific methods to maintain its power.

not 100% sure though!

your answer would be d.)