Answer: Option A
Explanation: In simple words, a project can be defined as an undertaking which might involve research and is carefully planned and executed to achieve a particular aim.
To achieve the goals from the project, the management has to use all its functions like planning and controlling etc. This is not necessary that the project will benefit the customers only or the organisation itself. A project can benefit either of them.
Hence from the above we can conclude that the correct option is A.