E4D13 — Amateur Extra Class

E4D13 : What is the received signal level with a transmit power of 10 W (+40 dBm), a transmit antenna gain of 6 dBi, a receive antenna gain of 3 dBi, and a path loss of 100 dB?
A -51 dBm
B -54 dBm
C -57 dBm
D -60 dBm
Correct Answer: -51 dBm