Solar Mow, makers and sellers of solar powered lawn mowers, determined that its chief executive officer should attend a workshop on solar energy to be held on the beach at Waikiki, Honolulu. The workshop cost $2,000, including air fare, meals, and lodging. The firm charged the cost of the trip with a local travel agency. Recording the transaction requires a/an:

a	asset to be debited, revenue to be credited.
b	liability to be debited, an asset to be credited.
c	asset to be debited, a liability to be credited.
d	expense to be debited, a liability to be credited