Answer:
a. Run on
Explanation:
'The Canadian side of Niagra Falls is beautiful,' is a complete thought, therefore it should be followed with a period.
This sentence seems grammatically correct, but it’s wordy. if this is your sentence in an essay or something, i’d recommend splitting it into two. it could be something like “i do not dislike golf or tennis, and I actually enjoy swimming. Still, they can in no way replace the value of team sports.”