The Nurse Is Testing a 10-Year-Old Child's Ability to Understand

The nurse is testing a 10-year-old child's ability to understand conservation of matter.Which test would be appropriate?

A) Ask her to sort blocks by color and by shape.
B) Ask her to order the blocks from smallest to biggest.
C) Ask her to determine which glass of water has more water in it,the tall skinny glass or the short fat glass.
D) Ask her to make a code using the alphabet and then write a message in the code she has made up.