Emily took a math test with 20 questions. Each question is worth an equal number of points. The test is worth 100 points in total. If a score of 70 points earns a grade of C, how many questions would Emily need to get right to get atleast a 'C' on the test ?

Question

$(a) \; x \geq 14\\ (b)\; x \leq 14\\ (c)\; x > 14 \\ (d)\;x < 14 $