Read the following paragraph and determine if the hypothesis is true:

Hamster<br>Sara's brothers was sad. His pet hamster died. Her brother was distant and just stood in his room all day. Sara's check came and Sara went to the pet store. She bought him a new hamster and he was happy.

Hypothesis: Because Sara's brother was sad after the loss of his pet hamster, she waited until payday to buy him a new gray hamster which cheered him right up. 
It's impossible to say