if a company put mone into a certificate of deposit, would this be a financing activity or investing activity?

I also would like to know your thought on if a company created and funded a business money market savings account. What would the transfer of funds be classified as and what type of income would the interest income be classified as$?$

I would appreciate a clear explanation as I have created a fnancial plan, but I$\text{'}$m unsure of the classification for cash flow. Thank you