False. I think it is false for the reasoning of the many commas
The is a determiner, first is a number, professional is an adjective, baseball is an adjective, league is a noun, was is a verb, later is an adverb, started is a verb, in is a preposition, 1871 is a number.
B: personal opinions
Because readers can have different opinions and it makes an essay more biased.
I would go with D) a large company or combined businesses that control specific market it sounds like it would fit.
The sentence is interrogative (B), as it is a question.
Hope this helped :)