Save the Planet, a private nonprofit research organization, received a $500,000 contribution from Ms. Susan Clark. Ms. Clark stipulated that her donation be used to purchase new computer equipment for Save the Planet’s research staff. The contribution was received in August of 2009, and the computers were acquired in January of 2010.

For the year ended December 31, 2009, the $500,000 contribution should be reported by Save the Planet on its

a. Statement of activities as unrestricted revenue.

b. Statement of activities as deferred revenue.

c. Statement of activities as temporarily restricted revenue.

d. Statement of financial position as deferred revenue.