Who was an ancient Greek philosopher who taught Plato? A. Herodotus
B. Socrates
C. Sophocles

Socrates

Summary: Plato was a philosopher during the 5th century BCE. He was a student of Socrates and later taught Aristotle. He founded the Academy, an academic program which many consider to be the first Western university.

Socrates is the ancient Greek philosopher that had taught Plato.

Explanation:

Socrates (469/470-399 BCE) was a Greek philosopher and is considered the father of western philosophy. Plato (l. c. 428-348 BCE) was his most famous student and would teach Aristotle (l. 384-322 BCE) who would then tutor Alexander the Great (l. 356-323 BCE). By this progression, Greek philosophy, as first developed by Socrates, was spread throughout the known world during Alexander's conquests.

companies sell stock to their businesses grow and become "public"

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.