Carmen ecstatically snatched up her laptop on the way out the door and dialed

Grandma's number. "I'm coming over— prepare for another excruciating computer class," she said, laughing over the knowledge they probably wouldn't even turn on their computers. Initially, Carmen had grudgingly agreed to Grandma's request to come over on Tuesdays to educate Grandma about how to use a computer. Now it was Carmen who prodded Grandma into further Tuesday computer instruction, even though Grandma had become amazingly proficient. It had been Carmen's first opportunity to spend time alone with Grandma and hear her amazing and often hilarious stories. "I really love being a computer teacher," Carmen thought, smiling.
What does Carmen mean when she says, "I really love being a computer teacher."

A. Carmen is using the computer classes to write down all of Grandma's amazing and hilarious stories on her laptop.
B. She is extremely proud that she helped Grandma become proficient at computers despite having no former teaching experience.
D. The computer instruction now merely represents Carmen's love for spending time with her Grandma

and hearing her stories.