Following is the extract of the Balance Sheet of Vikalp Ltd. as per Schedule-III, Part-I of Companies Act as at 31st March, 2024 along with notes to accounts : 
(i) The total face value of equity shares issued during the year 2023-24 was :
Select the correct sequence of accounting events for share capital;
A. Receive application money
B. Calls in advance
C. Issue of prospectus
D. Final call of share
E. Allotment of share
Choose the correct answer from the options given below:
A carpenter needs to make a wooden cuboidal box, closed from all sides, which has a square base and fixed volume. Since he is short of the paint required to paint the box on completion, he wants the surface area to be minimum.
On the basis of the above information, answer the following questions :
Find \( \frac{dS}{dx} \).
