Question 16 of 22 Which event resulted directly from the growth of railroads in the 19th century?
A. Congress stopped regulating transportation.
B. The economy experienced a period of inflation.
C. More efficient forms of long-distance communication were
invented.
D. Mail service became more efficient.
A p e x

the correct answer that would best complete the given statement above would be option b. expanding civil services. diocletian and constantine paved the way for foreign invasion by dividing the empire, creating administrative bureaucracies and reorganizing the military, except for expanding civil services. hope this answer .

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explanation:

the of atp are the key to its ability to store and supply energy;

phosphate

the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.