Accessing a local variable outside the block in which the local variable is defined causes a _________ .

How do you differentiate comments from different reviewers?

A) Changes by each reviewer show in varying shades of red. B) Changes are displayed in different colors for each reviewer. C) Each reviewer is automatically assigned a number and all comments display the corresponding number. D) Changes by each reviewer appear in different shaped comment boxes–circles, rectangles, etc.

An unmanned aerial vehicle is more commonly known as a(n) ______.

Fill in the blank(s) with the appropriate word(s).