On January 1, 2019, John Traverse acquires 12,000 units of the RV Income Trust at a cost of $720,000.During 2019, the trust makes a distribution of $5.00 per unit.Of this total $1.50 is a return of capital while the remaining $3.50 is property income.John reinvests the total distribution in RV units at a cost of $55 per unit.What is the adjusted cost base of John's units on December 31, 2019?

$58.21 per unit.

$53.62 per unit.

$60.00 per unit.

$59.58 per unit.