Galileo was an Italian astronomer who.......

[vetraferniture]

Galileo was an Italian astronomer who..........
A. developed the telescope
B. discovered four satellites of Jupiter
C. discovered that the movement of pendulum produces a regular time measurement
D. All of the above

 

[Duy Khuong Nguyen]

D. All of the above

 

[saiburi]

Its answer is D. He developed all things which you mentioned.