Based on the information provided in this excerpt, I would say that Tom is hard-working but he lacked interest in what he's doing because he's not making an effort to understand it. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
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Tuesday was a quite lovely day. We had a picnic, and the food was terrific and we had a great time.
The correct answer is A I believe
