Homework: Les... UCSLIOn 3, 0.9.15 Part 2 of 2 Plot the complex number. Then write the complex number in polar form. Exp the argument in degrees. -7i Plot the complex number on the complex plane to the right. Write the complex number z = - 7 i in polar form. Select the correct choice b and fill in the answer box(es) within your choice (Type an exact answer, using radicals as needed.) O A. Z = cos + i sin O B. Z= ( sin + i sin 9) O C. z= sin + i cos OD. Z= cos + i cos