If a partner joins a partnership by contributing services, the value of the partner's interest received is:

a. Taxed as ordinary income if the interest is a capital interest in the partnership

b. Deducted by the partnership and allocated to the non-service providing partners if it is a capital interest

c. Not taxed if the interest is a profits interest in the partnership

d. Not deducted by the partnership if the interest is a profits interest

e. All of the above