Puzzle #1 - The answer is set B. The narrator wishes the shepherd had a larger flock, which rules out C. Her husband jokes about the wise men not tending to their animals, plural, which rules out the set (A) with only one camel. In the story, the word left is printed in the color to match Mary, who is on the left in D.
Puzzle #2 - Wise man 3 has been replaced. We know this because he has already put his camel down for a nap. There are camels remaining to be tended that match the colors of the other two wise men but not the one for the purple wise man.