C
A can’t be right because rockets are needed to send space probes and rovers
B is too detailed, and is too narrowed down
D is also just a small factor of the big picture
Space probes and rovers are best known for being able to voyage to places that humans can’t go, due to environment and cost
~Hello there!
Your questions: Who was involved in the Palestinian conflict?
Your answer: Israelis and Arabs were involved in the Palestinian conflict.
Hope this helps!
about halfway from the center, in the spiral arms