Brett and Lisa file taxes under the married filing jointly status. Lisa is a sales manager for an auto parts company and Brett takes care of their 3 children. In 2018, Lisa receives a promotion associated with a move to a new division located over 500 miles from their existing home. The cost to move their household items is $8,700. Lisa's employer reimburses her for $3,000 of those costs and also pays $2,100 for airfare for the entire family to fly to the new destination. Lisa's moving expenses deduction for 2018 is:

a. $5,700

b. $3,600

c. $0

d. $8,700

e. None of these choices is correct.