The question is incomplete. Here's the complete question:
You're setting up offline conversion tracking. You need to to upload offline data into your Google Ads account. Which two formats are supported? (Choose two.)
a) Google Docs
b) XML
c) Google Sheets
d) CSV
e) HTML
Answer:
c) Google Sheets & d) CSV
Step-by-step explanation:
According to the Google Ads website, when you're trying to upload your own conversion files, you can choose between Excel, CSV and Google Sheets formats. Another option is to download templates from the Google Ads interface.