The static method arraytostring takes an array of strings and returns a string that reports the contents of the array in a form illustrated by the following examples. if the arrays x, y, and z are given by:

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct