Answer:
Option D
Explanation:
$50 dollars compared to the cost the property can be seen as honorarium, it is not a necessity or a compulsory thing to be paid, the law did not mandate it that it must be paid after every referral.
It is an agreement between Vicky and Thomas, a way of showing themselves the attitude of good business. Agreements like this is not common as some other things are attached to it. but $50 after a referral, and looking at the passage it was stated that Thomas is a home inspector with excellent reputation, of course there is a probability that Thomas will always get a customer and paying %50 wont be a problem for him as it is a way of appreciating Vicky effort.
