D would be the best answer
Answer:
After the revolution of 1951, non-aristocratic citizens like Matrika Prasad Koirala held the position of prime minister still under the declaration of the King of Nepal. The first general election was held in 1959 and Bishweshwar Prasad Koirala became the first elected prime minister of Nepal.
I am pretty sure the answer is B) sedimentation but i could be wrong. i haven't don't this subject in a year. lol
