Pick up the correct statement from the following:

• A. The estimated value of the work excluding the amount for contingencies, work charged establishment, tool and plants, is called work value
• B. The actual expenditure involved to complete a work including incidental, establishment and travelling charges, is called actual cost
• C. The formal acceptance by the administrative department for incurring an expenditure on the work, is called administrative approval
• D. All the above

Answer: Option D