Z Co$.$ provided consulting services to W Co$.$ and billed them $$2,000.$ Later, W Co$.$ made a partial payment

of $$1,200.$ What is the effect on the accounting equation for ZCo. when the partial payment is received?

Select the single best answer:

A$.$ decrease Assets; decrease Owner's Equity

B$.$ increase Assets; decrease Assets

C$.$ decrease Owner's Equity; increase Assets

D$.$ increase Owner's Equity; decrease Owner's Equity

E$.$ decrease Assets; increase Owner's Equity