Arrange the steps of adjustment of partner's capital on the admission of a new partner in sequence.
1. Calculate the adjusted capital of old partners.
2. Calculate the proportionate capital of a new partner.
3. All adjustments should be made.
4. Calculate the total capital of new firm.
Select the correct answer:

A. 3, 1, 4, 2

B. 3, 4, 1, 2

C. 4, 3, 2, 1

D. 3, 4, 2, 1

Answer: Option A