There is a uniform distributed source of heat present in a plane wall whose one side (x = 0) is insulated and other side (x = L) is exposed to ambient temperature (T∞ ), with heat transfer coefficient (h). Assuming constant thermal conductivity (k), steady state and one dimensional conduction, the temperature of the wall is maximum at x equal to

• A. 0
• B. L
• C. L/2
• D. L/4