Answer:
Consequently is the answer.
Step-by-step explanation:
Another way of saying consequently is saying because.
Some people argue, that because he has natural advantages over other swimmers, it was not fair that he won eight gold medals in 2008.
The sentence does not require the word consequently to be correct though if one of the four answers had to be put in the blank consequently would be the correct answer.
Some people are born superstars, really! Michael Phelps, the Olympic swimmer is a perfect example. ______ his hands and feet are bigger than normal, which helps him move quickly through the water. ___ he can reach his arms higher above his head than can other swimmers. Some people argue, consequently, that because he has natural advantages over other swimmers, it was not fair that he won eight gold medals in 2008.
I hope this helps.