Respuesta :
The sentence that acknowledges an opposing claim is Sentence 2. The word used in sentence 2 to introduce opposing claim is though.
What is an Opposing Claim?
An opposing claim or opposing argument is the argument that goes against the thesis presented by the article. The opposing claim contradicts the thesis.
It is used to strengthen the argument. The words that are used to introduce an opposing claim are although, though, however, and so on.
The statement in the argument "Though many today consider sports unnecessary..." acknowledges an opposing claim through the use of the word though.
Therefore, the correct option is c.
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https://brainly.com/question/20725816