Answer:
In addition
Step-by-step explanation:
The phrase that would best fit the blank is in addition. It means the same as words also, as well, and besides. This means that Champ is on both the basketball and soccer teams.
Therefore and consequently can be used as synonyms, which means that they have the same meaning - as a result. The fact that Champ is on the soccer team is not the result of him being on the basketball team.
In spite of is used to show contrast. This would mean that Champ would be on the soccer team despite being on the basketball team. But, if we used this phrase, the sentence would be grammatically incorrect.
This is why option A is the correct one.