Which statement correctly describes solon's contribution to the city-state of athens?
a.
he oversaw construction of a powerful fleet of triremes to protect athens.
b.
he convinced citizens to fund the building of a magnificent temple, the parthenon, atop the acropolis.
c.
he led the athenian army to a decisive victory over the persians at the battle of marathon.
d.
he instituted democratic reforms including an elected assembly and people’s courts with juries.