When solving the 1-Dimensional heat equation for the conduction of heat along the rod without radiation with conditions:i) u(x,t) is finite for t tends to infiniteii) ux(0,t) = 0 and ux(l,t) = 0iii) u(x,t) = x(l-x) for t=0 between x=0 and x=l, which condition is the best to use in the first place?

• A. ux(0,t) = ux(l,t) = 0
• B. u(x,t) = x(l-x) for t=0 between x=0 and x=l.
• C. u(x,t) = x(l-x) for x=0 between t=0 and t=l.
• D. u(0,t) = u(l,t) = 0