Q25·Section II (Mathematics)·25 of 190A one-variable polynomial ring over a field is always a PIDWhich of the following is a PID? OptionsAZ[x]\mathbb{Z}[x]Z[x]BR(x)[y]\mathbb{R}(x)[y]R(x)[y]CC[x,y]\mathbf C[x,y]C[x,y]DZ30\mathbb{Z}_{30}Z30Pick an option to check your answer.Show answerShow solution Report a problem with this question← Q24All questionsQ26 →Keyboard: A–D answer · S solution · ←/→ previous/next