Use reasoning to lead to the answer of the following question:
Old people can have difficulty using computer, it can turn a simple task into a lot of what?\nOptions:\n- glad\n- program created\n- pleasure\n- stress\n- increased efficiency

stress
Difficulty in using computer is a stress for old people.

Old people can turn a simple task into a lot of stress as they are having difficulty in using computer.

.

The answer is stress