replying a job related mail

Hello,
i received an email response from a job i applied today. the hr person asked some questions . i just want basic reply thank you for checking for me

orginal message
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I hope it's okay if we use your first name! Thank you very much for your application. We will take a closer look at your application documents and get back to you. Can you tell me briefly how you first found out about our company and our job offer (what site/what media)?

Sincerely,
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