Read the passage given below and answer the question: But the Lion went into the forest and found his own supper and no one ever knew what it was, for he didn’t mention it. And the scarecrow found a tree full of nuts and filled Dorothy’s basket with them, so that she would not be hungry for a long time. She thought this was very kind and thoughtful of the scarecrow, but she laughed heartily at the awkward way in which the poor creature picked up the nuts. His padded hands were so clumsy and the nuts so small that he dropped almost as many as he put in the basket. But the scarecrow did not mind how long it took him to fill the basket, for it enabled him to keep away from the fire, as he feared a spark might get into his straw and burn him up. So he kept a good distance away from the flames, and only came near to cover Dorothy with dry leaves when she lay down to sleep. These kept her snug and warm and she slept soundly by until morning." When it was daylight, the girl bathed her face in a little rippling brook and soon after they all started toward the Emerald city." This was to be a wonderful day for the travellers. They had hardly been walking an hour when they saw before them a ditch that lay across the road and divided the forest as far as they could see on either side. '... she would not be hungry'. The underlined word is a/an_______.