When deciding which factor of a product to differentiate first while evaluating an integral, instructors often suggest a priority sequence among function types. Which class of functions is generally given the highest priority to be differentiated (rather than integrated) in that sequence?
(a) Exponential functions such as ex
(b) Logarithmic functions such as lnx
(c) Algebraic polynomial functions such as x3
(d) Inverse trigonometric functions such as arctanx