Answer :
D. Alexander Graham Bell
Gustav Eiffel was born in France and Henry Ford was born in the United States, so B and C are not the correct answers. Andrew Carnegie was an industrialist, not an inventor and Alexander Graham Bell did invent the first practical telephone, so he is the correct answer.
Gustav Eiffel was born in France and Henry Ford was born in the United States, so B and C are not the correct answers. Andrew Carnegie was an industrialist, not an inventor and Alexander Graham Bell did invent the first practical telephone, so he is the correct answer.