Which converging tectonic plates are forming the Cascade volcanos-that are ONLY in Washington state and Oregon state?

Which converging tectonic plates are forming the Cascade Volcanos– that are only in Washington and Oregon State?

Which converging tectonic plates are forming the Cascade volcanos-that are ONLY in Washington state and Oregon state?Overthrone Caldera.BritishColumbFranklin Glacier VolcanoExplorerMount MeagerRidgeMount CayleyExplorerMount GaribaldiPlateMount BakerGlacierJuan de FucafPeakRidgeWashingtonMount RainierMount Stuselens A Mount AdamsJuan do FucaPlateMount HoodAMountJeffersonBlancoThreeSistersNewberryFracture ZoneVolcanoCrater LakeGordaGordaOregonRidgePlateMountShastaMedicineLake VolcanoLassen PeakMendocinaFracture ZoneCaliforniaSelect one:a. Juan de Fuca Plate and North American Plate xb. Gorda Plate and North American Platec. Pacific Plate and North American Plated. Farallon Plate and North American PlateB. A & Bf. A, B, & C