Given the infinite sequence (an], answer the following. an = sin (nit) Part 1. This sequence is a function. Choose the letter of the correct domain. A all real numbers B {1, 2, 3, 4, . . ., n} C the set of positive integers D undefined Part 2. Write the first 3 terms of the sequence. first term second term third term Part 3. Based on the results of Part 2, the sequence Choose the letter of the best option. A. is a monotonic bounded sequence. B. converges. C. is a convergent series. D. diverges. E. neither converges nor diverges