Usage of "perfunctory"

[Our Tort System]

Hello,

Which of the following sentences sound normal? If none of them are normal, would you please suggest improvements?

1. Owing to the perfunctory attention she had paid to the subject during the semester she flunked the exam.
2. Owing to perfunctory attention she had paid to the subject during the semester she flunked the exam.

Thanks!
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If it's not easy, don't do it!
That's how I got where I am.

[Beeesneees]

I would use (1), Tort, following exactly the same format as if 'perfunctory' were not there:
Owing to the attention she had paid...
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Cheers m' dears!

[Our Tort System]

Thank you Bev!
_________________
If it's not easy, don't do it!
That's how I got where I am.