Programmers use an Integrated Development Environment (IDE) to write software programs, because: A. it simplifies the process by providing a single user interface for multiple software tools.
B. it writes the code for a programmer
C. it does not allow programmers automate repetitive tasks.
D. it provides a common source for writing and linking code

A) It simplifies the process by providing a single user interface for multiple software tools.

Explanation:

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.