Read the following context and choose the best option to answer the question.
Context: They asked if we were going to try for our Canine Good Citizenship certificate and I said yes and we were hoping to go further and do therapy work . They also invited us to stick around and watch the Rally class and give it shot . They said Poodles usually need more of a challenge !
Question: Why would the people want their dog get the certificate ?
Options: 
A. To help them when they go under therapy .
B. To make themselves feel proud of themselves .
C. None of the above choices .
D. To validate that their dog has met the proper training requirements .


D