Question

a programmers most important task before planning the logic of a program is to
a. decide which programming language to use
b. code the problem
c. train the users of the program
d. understand the problem

Explanation:

Before planning program logic, a programmer must first clearly understand the problem to be solved. This helps in making appropriate choices about language, coding approach etc. Code - writing comes after logic - planning, and training users is much later in the process.

Answer:

D. understand the problem