Which statemnt is correct: 

a) Gravity is weak force, the other forces of nature are much stronger hence it is possible for something with speed lower than c to escape any gravity, even the strongest gravity;
b) There are known cases where gravity cannot be escaped;
c) Gravity is caused by graviton and they are slower than their cousins photons hence photons can always escape gravity;
d) Gravity can be escaped only with Elon Musk's super cool rockets.
e) Both option a and b are correct.
 Provide response in all capital letters, no lowercase letters allowed.
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