Saturn, Inc. paid $$4,000$$ on accounts payable. How does this transaction affect the accounting equation of Saturn?
A. Assets increase by $$4,000$$ and equity decreases by $$4,000$$.
B. Assets increase by $$4,000$$ and liabilities increase by $$4,000$$.
C. Assets decrease by $$4,000$$ and equity increases by $$4,000$$.
D. Assets decrease by $$4,000$$ and liabilities decrease by $$4,000$$.