SCOTUS Has Increasingly Denied Petitions for Writs of Certiorari

SCOTUS has increasingly denied petitions for writs of certiorari , thus reducing the number of cases it will review. Which two doctrines limit the scope of state appellate review?

A) the raise-or-waive doctrine and the collateral consequences doctrine
B) the mootness doctrine and the collateral doctrine
C) the mootness doctrine and the raise-or-waive doctrine
D) the mootness doctrine and the plain-error rule