Question

What was a great technological feat of the shuttle program?

docking with the international space station
repairing a shuttle in orbit
putting the Hubble Space Telescope was put into orbit and later repairing it

Answer 1

i think it would be putting the Hubble Space Telescope up in orbit then later repairing it

Answer 2

One major technological feature would be A, being able to dock the ISS while in orbit. At the time, this was a great advancement.
Hope this helps you out!