You are interested in your 5-year-old nephew’s language development and so decide to give him a little test. You show him one object and say “This is a wug.” Next, you show him three of these same...

You are interested in your 5-year-old nephew’s language development and so decide to give him a little test. You show him one object and say “This is a wug.” Next, you show him three of these same objects and say “What are these?” You would expect him to say: