Final answer:
The correct answer to the question regarding the overlap of localities in a program is option a) may. Localities such as functions or blocks of code can share variables and resources, leading to overlap.
Step-by-step explanation:
A program is generally composed of several different localities, which may overlap. The correct answer to this question is option a) may. In computer programming, a locality refers to a region of a program, like a function or a block of code, where certain variables and resources are used. These localities may overlap when one function calls another or when several functions access global variables or shared resources. Overlapping localities can introduce complexity in terms of data access and resource management.