Read the following context and choose the best option to answer the question.
Context: About 4 weeks ago now , the toilet blocked . It was an ordinary day , and an ordinary flush , yet , it did n't flush properly . Consequently , it blocked . I called the realestate agent and they had a tradesman out to unblock the toilet .
Question: Why did that happened to it ?
Options: 
A. Something got stuck in it .
B. It 's a fast flush .
C. It flushed perfectly .
D. It flushed fine .


A