Freelance Writer Jobs

ok i get this letter back from the employer who wants to meet me on monday at 11.00 a.m for an interview .
but she wants me to write this for her..
We would also like you to submit an original writing sample on the following topic:

List out the strategy you will use to sell Electronic medical records and please correlate it to your strengths & skills that make you the best candidate for this job .

Please send it to me as a word attachment.

What is this ? i don’t even understand what’s meant by electronic medical records ? What should i write back to the employer ?