Suppose You Must Design a Program to Calculate the Roll-Out

Multiple Choice

Suppose you must design a program to calculate the roll-out (number of inches traveled in one revolution of the pedals of a bicycle based on its gear combinations) . The user must provide the gear sizes, which must be converted into roll-out for all different gear combinations. How can the flow of user interaction for this problem be designed?

A) Hand-tracing can confirm code that implements gear selection.
B) Pseudocode can guide algorithm design through divide-and-conquer strategy.
C) A storyboard can be used.
D) The physical gears can lead to ideas for the correct algorithm to use.