A probe is a spacecraft that travels through space to collect science information. Probes send data back to Earth for scientists to study. Mercury, Venus, Mars, Jupiter, Moons of Mars, and Moons of Saturn.
I would believe the answer to be B. <span />
Despite his nature of giving, Musa's massive spending and generous donations created a massive ten year gold recession. In the cities of Cairo, Medina, and Mecca, the sudden influx of gold devalued the metal significantly. Prices of goods and wares became greatly inflated.
I hope his helps!! :))