What two considerations should be kept in mind when using the Data Import Wizard?

Ursa Major Solar wants to upload data to Salesforce and heard about the Data Import Wizard. They want to upload the following data: Os)

* 60,000 Accounts

* 20,000 Contacts Calculator

* 10,000 Opportunities. .

* 5,000 Conference custom object records

What two considerations should be kept in mind when using the Data Import Wizard? Choose 2 answers
A . Opportunities need to be uploaded with a different tool.
B . Custom Objects need to be uploaded with a different tool.
C . There is a limit of 10,000 records that can be uploaded at once.
D . There is a limit of 50,000 records that can be uploaded at once.