Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. The temperature of the gaseous planet varies linearly with the height of the atmosphere as measured from the top of a visible boundary layer. The instruments on board can withstand a temperature of 601 K. At what altitude will the probe's instruments fail?

A. 50 kilometers
B. 80 kilometers
C. 83 kilometers
D. 100 kilometers
E. 111 kilometers