You create a new organization-branded theme for your environment. You want to make this theme default for all the environments in your organization. 
Please select the three steps that you need to make to achieve your goal.

Answer options:

A.Clone your Default Theme
B.Import Data
C.Publish Theme
D.Exported Selected records
E.Distribute a solution

Correct Answers: B, C and D 
Power Apps provides tools to customize the look of your apps. You can access the Themes area from the Power Apps portal using Settings/Advanced Settings/Customizations. After you create an organization-branded theme, you can export the selected theme (Number1) as an Excel file using the Exported Selected records function (Number 2) and re-import it to the new environment using the Import data (Number 3). After the Theme`s import, you need to promote it to a default theme by the Publish Theme function (Number 4). 

All other options are incorrect. 
For more information about the Power Apps organizational branding by using themes, please visit the below URL: 

https://docs.microsoft.com/en-us/powerapps/maker/model-driven-apps/create-themes-organization-branding