Consider the geography of the iberian peninsula. how would an invading army most likely have to invade spain? a. spain most likely would be invaded by sea because the pyrenees physically isolates spain from the rest of europe. b. spain most likely would be invaded by land because the boot-shaped peninsula gives spain a rugged coastline. c. spain most likely would be invaded by land because the cliffs of the fjords are far too steep and rocky to be scaled. d. spain most likely would be invaded by both land and sea because the strait of gibraltar provides sand bar access to spain from morocco during low tide.