THIS IS VERY URGENT IM OFFERING 80 POINTS AND ILL MAKE YOUR BRAINLIEST!!!

An isotope of the element iridium has a 77 protons and 115 neutrons in its nucleus.
Which of the following correctly represents this isotope?

A.115 over 77 Ir
B. 77 over 115 Ir
C. 192 over 77 Ir
D. 192 over 115 Ir

PLEASE HURRY :C