The Following Three-Year-Olds Are Asked to Count the Number Building

The following three-year-olds are asked to count the number building blocks (five each) placed in front of them. Which of the following responses best illustrates the one-to-one principle?

A) Henry, who says, '1, 4, 2!'
B) Junior, who says, '5, 3, 1, blastoff!'
C) Thando, who says, 'One hand has five fingers.'
D) Saleema, who says, '1, 2, C, D, F.'