What is the relationship between the following sentences from the article? In April 2018, a Washington, D. C., city councilman proposed lowering the voting age in local and federal elections from 18 to 16. By 2020, Allen hopes 16- and 17-year-olds will be able to vote in both local and federal races. (A) The second sentence presents a supporting detail for the main idea stated in the first sentence. (B) The first sentence introduces the cause of the potential outcome presented in the second sentence. (C) The second sentence summarizes the main idea of the article stated in the first sentence. (D) The first sentence contradicts the claim made in the second sentence