Answer:
D. is a hobby
Explanation:
According to my research on the English language, I can say that based on the information provided within the question the correct statement for this question would be "is a hobby". Therefore the whole correct sentence would be "Stamp collecting is a hobby sometimes used in the schools to teach economics and social studies."
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
James W. Marshall discovered gold in the Sutter Creek area of Colona, California on January 24, 1848 while working to construct a mill.
Answer:
Sensorimotor Stage
Explanation:
Sensorimotor Stage: This is the very first stage of Jean Piaget's theory of cognitive development. The sensorimotor stage starts from birth and lasts around two years of age.
Object permanence is considered to be the important attainment of this stage and states that an object exists even if it is not in a person's visibility or hidden. Through object permanence, a person can develop mental representation that is schema of a particular object.
The earliest stage would be the sensorimotor stage.
