Why capacitor allows AC to flow through it and blocks DC

Explain why an AC current can flow through the capacitor and why capacitor blocks DC

The capacitor blocks DC current in a circuit, whereas AC current is being passed. This explains by the reactance of a capacitor (x) = 1/(2pif*C). Capacitor reactance is highly dependent on the frequency of the AC voltage. DC current is constant = 0

AC current does not have direction. No impedance. AC current bypasses resistance!