Which line in this excerpt from walt whitman's "o captain! my captain! " reflects the theme of patriotism that dominates the poem? o captain! my captain! rise up and hear the bells; rise up—for you the flag is flung—for you the bugle trills, for you bouquets and ribbon’d wreaths—for you the shores a-crowding, for you they call, the swaying mass, their eager faces turning; here captain! dear father! this arm beneath your head! it is some dream that on the deck, you’ve fallen cold and dead.