David and Rebecca have been talking about getting married. In June 2006, David pops the question and gives Rebecca a $30,000 engagement ring. They marry in October of 2006 at which time David transfers $100,000 into Rebecca's checking account. What is the value of David's marital deduction for gift tax purposes in year 2006?
A. $ 12,000
B. $ 88,000
C. $ 100,000
D. $ 118,000