By __________, infants recognize the same melody when it is played in different keys.
A) 2 to 4 months
B) 4 to 6 months
C) 6 to 8 months
D) the end of the first year

Question

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The Answer of By __________, infants recognize the same melody when it is played in different keys.
A) 2 to 4 months
B) 4 to 6 months
C) 6 to 8 months
D) the end of the first year

By __________, Infants Recognize the Same Melody When It Is