Your organization needs a large amount of extra computing power within the next two weeks. After those two weeks, the need for the additional resources will end...

Your organization needs a large amount of extra computing power within the next two weeks.
After those two weeks, the need for the additional resources will end.
Which is the most cost-effective approach?

A. Use a committed use discount to reserve a very powerful virtual machine B. Purchase one very powerful physical computer C. Start a very powerful virtual machine without using a committed use discount D. Purchase multiple physical computers and scale workload across them