I'm pretty sure it is just the economy
There are four states in the U.S. that begin with "I": lowa, Illinois, Idaho, and Indiana
It was the planet Venus that made the spacecraft Magellan enable the scientists to make an extensive research. The spacecraft Magellan was a robotic space probe that was launched to observe the planet Venus and calculate the gravitational field of the planet.
$11.77/11 = $1.07
6*1.07 = $6.42
Therefore the answer is C.
