Susie and Sally and their cousins Samuel and Stanley are playing "wedding." They are using lace curtains for the bride's dress, and each person has a role to play. This is an example of ________ play

Joquain was thirsty, so he looked at his mother and pointed to the glass on the counter and said, "juice." This is an example of ________

a. fast mapping b. underextension c. overregularization d. a holophrase

Generally, humans can hear frequencies as high as __________

a. 1000 cycles per second b. 5000 cycles per second c. 10000 cycles per second d. 20000 cycles per second