The Sarbanes$-$Oxley Act of $2002$:

i$)$ makes the chief financial officer solely responsible for the accuracy of the firm's financial statements.

ii$)$ has significantly increased the number of firms opting to go public in the U$.$S$.$

iii$)$ imposed some significant costs on U$.$S$.$ corporations.

iv$)$ requires all corporations to comply with the terms of the act.