Answer:
An oval represents an input or output operation.
A diamond represents the start and end of a program.
A rectangle represents a process to be carried out.
A parallelogram represents a decision or branching point.
Explanation: got this answer from someone else and it is right
Oval: Start and end of a program. (A)
Rectangle: Process to be carried out. (C)
Diamond: Decision or branching point. (D)
Parallelogram: Input or output operation. (B)
Edge