What type of student was Billie Jo?

Choices:
A. Diligent
B. silly
C. lazy
D. not enough information
Diligent
I'm going to take something that happened to my daughter for this answer.
Billie Jo (our daughter) was probably around ten years old when it happened. We had a young Black Labrador dog who had become quite smitten with chewing things up that she wasn't supposed to. The list grew longer as the months passed.
Looker, our black lab, had chewed up and eaten a $10 bill, my VCR remote control (probably around 1987), and a sticker-filled blackberry vine my wife had planted. How she did that one without serious repercussions is beyond me.
She also had a habit of grabbing the mail as it slid through the slot that was in our front door, taking it out back and 'sorting' it for us. So what happened really came as no big surprise.
My daughter was a very diligent student, never wanting to let down her teachers by not turning her homework in as soon as she got to school (at least until she hit 14).
One morning our daughter was trying to find the math homework that she knew she had completed the night before. My wife assisted in the search and soon found a partially chewed up piece of our daughter's homework page.
Our daughter was devastated! How could she possibly walk in to school and publicly announce,
“My dog ate my homework!”
without becoming the laughing stock of the school?
Like this:
Mama Bear (my wife) storms into the classroom and vehemently upholds our daughter's “dog ate my homework” bit, showing the teacher the half eaten paper.
Funny thing was, the teacher would have never doubted our little girl for one minute. Back then, Billie Jo was the sweetest, cutest, most polite and well mannered child a parent could possibly hope for. And her teachers loved her.
So, if you have partial proof, it can be a valid excuse.