"The Outer Space Treaty of 1967, signed by over 100 countries, bans countries from taking any celestial bodies into their possession; however, the treaty does not clarify [does it apply to private companies looking to mine asteroids?]"
A. No change
B. does it apply to private companies looking to mine asteroids.
C. whether it applies to private companies looking to mine asteroids.
D. if it applies to private companies looking to mine asteroids.
Correct answer is C, can anyone give an explanation?