If x is an integer and 3.134 × 10^x is less than 31,000 what is the greatest possible value for x?  Choices:
A) 7	B) 6	C) 5	D) 4	E) 3

Rationale: "if x = 4 3.134 × 10 ^ 4 = 31340 > 31000 so , x = 3 answer : e"
Answer: E