Answer :
The organism that would have a niche similar to that of an African fish eagle is the American bald eagle (option A).
What is a niche?
A niche refers to a function within an ecological system to which an organism is especially suited.
The niche of an organism distinguishes that organism from other organisms and ensures its adaptation and survival.
According to this question, African fish eagles are large raptors that have a wide range across sub-Saharan Africa. They consume fishes mostly as preys.
This suggests that the organism that would have a niche similar to that of an African fish eagle is another organism with similar characteristics such as the American bald eagle.
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