All the birds were called together. to them was said, “whichever one of you can fly farthest into the sky shall be chief.” all the birds flew to a great height. but wren got under the thick feathers of eagle and sat there as eagle flew. when all the birds became wing-tired, they flew down again; but eagle flew still higher. when eagle had gone as far as he could, wren flew still higher. when all the birds reached the ground, eagle alone returned, after a great while. behold! wren only was absent. so they awaited him. at last he returned. eagle had too highly been thinking of himself, being sure of being made chief; and behold! wren was made chief. how should a summary of this story begin? a. by describing how wren hid under eagle's wing b. with the words, "long ago, in a far-away land"c. by explaining that all the birds came together for a contest d. with the words, "eagle had too highly been thinking of himself"