Which of the following was not an important invention of the early 20th century?
O A. The airplane
B. The phonograph
C. The cotton gin
O D. The electric lightbulb
SUMIT

he is known for discovering   the fossil of a female hominin australopithecine   known as "lucy" in the afar triangle region of hadar, ethiopia.

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according to romans 13: 1-7, 1st peter 2: 12-14, and 1 timothy 2: 1-4, christians as citizens have specific responsibilities to a nation that gives liberties to its people. christians are obliged to live as good citizens by submitting to the human government. honor, or respect, is due to men in the high governmental station. a christian should reflect such respect not to gain some favor but because it is god’s will. peter 2: 14 notes that the purpose of the human government is to promote peace and justice in society. to submit to human government, peter includes three elements; obedience, respect, and good deeds.

the answer is a) high entry costs