Web Services is organized as a limited partnership, with David White as one of its partners. David's capital account began the year with a balance of $45,000. During the year, David's share of the partnership income was $7,500, and David received $4,000 in distributions from the partnership. What is David's partner return on equity?
a) 7.8%
b) 8.9%
c) 15.4%
d) 16.0%
e) 16.7%