A sample of gas occupies a volume of 512 mL at $20^{\large\circ}C$ and 74 cm of Hg as pressure . What volume would this gas occupy at STP?

Question

$(a)\;4645mL\qquad(b)\;464.5mL\qquad(c)\;4.645mL\qquad(d)\;0.4645mL$