When Programmers Are Working with Program Code,they Often Employ Utilities

Multiple Choice

When programmers are working with program code,they often employ utilities that are also used in auditing.For example,as program code evolves,it is often the case that variables defined during the early part of development become irrelevant.The occurrences of variables that are not used by the program are found using

A) program tracing.
B) scanning routines.
C) mapping programs.
D) automated flow charting programs.