Answer: I think its B-450 ml
Explanation: you have 8 and need 2 so thats 2 over 8 or 1 over 4, we have 150 ml of 8 so doing a fraction version with ml should work 150 over 450 simplified is 1 over 4 thus theres the answer
plus took the test and it was right sorry if my explamation is confusing