What was the name of the king and queen who financed columbus' voyage?
a) ferdinand and isabella
b) henry vii and elizabeth i
c) nicholas and catherine
d) charles and diana

The king and queen who enabled Columbus undertake this voyage and funded his geographical campaign were Ferdinand and Isabella - A.

He had multiple audiences and unsuccessful attempts before finally receiving an allowance which allowed him to go to the New World. 

When plants die fungi breaks them down