You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

Question: Which of the following is greatest?

Option A: 1/10

Option B: 1/100

Option C: 1/1000

Option D: 1/10^9

Option E: 1/5
Option E

Question: A certain basketball team played seven games and scored an average of 50 points per game. If, in the team's first five games, it scored 45, 39, 61, 50, and 43 points, what was the average (arithmetic mean) number of points scored over the last two games?

Option A: 65

Option B: 81

Option C: 82

Option D: 56

Option E: Cannot be determined from the information given.
Option D

Question: To fill an art exhibit, the ladies in an art course are assigned to create one piece of artwork each in the following distribution: 1/3 are sculptures, 1/8 are oil paintings, 1/2 are watercolors, and the remaining 10 pieces are mosaics. How many ladies are in the art class?

Option A: 80

Option B: 120

Option C: 240

Option D: 320

Option E: 400
Option C