1. 
MEDIUM

Which of the following best expresses this pattern in words? 1, 3, 5, 7, 9...
 This is a numeric pattern starting on 1, and each term after the first is 2 more than the previous.
 This is a numeric pattern starting on 1, and each term after the first is an odd number.
 This is a numeric pattern, and each term is 2 more than the previous.
 This is not a pattern.
 This is a numeric pattern, and each term an even number.
