[Solved] What are the disadvantages of implementing a buddy system algorithm for free lists?

What are the disadvantages of implementing a buddy system algorithm for free lists?

a) internal fragmentation
b) it takes so much space
c) we no more have the hole lists in order of memory address, so it is difficult to detect if 2 holes remain adjacent in memory and shall be merged into one hole
d) both a and c are correct

Answer: d
Explanation: Internal fragmentation is an issue to be dealt and it takes so much space.

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