someone tried to answer this question and its wrong because i put that same answer on my first try and i got it wrong so can someone who knows about music help me with this question thank you

Which of the following is incorrect regarding early work in the field of music technology? O A. It required knowledge of mathematics and physics. O B. It was only done by men. O d. It was strongly connected to university settings. OD. It was taking place in the 1940s