In the passage, what is the main purpose of the fourth paragraph?

Question

A.
to highlight how people preferred vinyl records to magnetic tapes
B.
to emphasize how continuous improvements in new technology led to the emergence of cassettes
C.
to describe the challenges of recording sounds on magnetic tapes
D.
to reveal the various challenges people faced while developing new technology for recording sounds

Answer 1

C. to describe the challenges of recording sounds on magnetic tapes