Explanation:

Output is the result or information produced by a computer system after processing input data, which is then presented to the user. Option (a) describes input, data provided *by* the user *to* the processor. Option (b) is grammatically incorrect and conceptually flawed. Option (c) accurately defines output: information received *by* the user *from* the processor. Option (d) is similar to (b) and describes input. Option (e) is incorrect as (c) is correct.