Which detail from the following excerpt of the poem "Casey at the Bat" contains assonance? 
 Then from five thousand throats and more there rose a lusty yell
 It rumbled through the valley, it rattled in the dell;
 It pounded on the mountain and recoiled upon the flat,
 For Casey, mighty Casey, was advancing to the bat.
 A
 "five thousand throats"
 B
 "It rumbled through the valley"
 C
 "It pounded on the mountain"
 D
 "there rose a lusty yell"