Story needs to be completed:
The budget of Derrick is less restrained right now than Brian's, so

My choice:
Brian likely makes less money.

Story needs to be completed:
William held Derrick's hand as they got their blood drawn for tests, because

My choice:
Derrick was afraid.

Story needs to be completed:
Nelson had a harder time controlling his emotions than Jeffrey because

My choice:
Nelson was so overwhelmed.

Story needs to be completed:
Betty is at the store buying products where Sarah has worked for ten years,

My choice:
Betty is buying goods.