An opportunity is something that is given to you through work or just chance, a trade off is something that is pre determined for a food or service that is decided is of the same value
Seven states had seceded from the union when Lincoln was elected.
Creator of the Assembly line —> Henry Ford
First Major Mail-Order catalog —> Tiffany and Company
Major seller of mail-order homes —> Sears
First mail order catalog seen in the U.S —> Montgomery Ward
President of General Motors —> Alfred Sloan
First mass produced vehicle in the U.S —> Model T
Answer: Theory of mind
Explanation: Since Johnny does not realise that by sitting close to the TV, he is blocking the view of the rest of his family, he is still developing a theory of mind. The theory of mind is the understanding that other people, family members, neighbours, do not share your opinion and this understanding develops in childhood, which practically means that the child adapts to the needs of others without neglecting his or her own. Developing awareness that others have different opinions, needs, emotions develops during childhood, but with the constant repetition of this fact so that children are constantly hearing and gradually adopting it.