Jenny is placing pegs on a pegboard for handing tools in his garage. Four pegs have been placed on a pegboard. (Coordinate plane with points at (-3,4), (0,4), (3,4), (6,4) If Jenny is spacing the pegs evenly in a horizontal row, which of the coordinates best represents Jenny may place the next peg
A. (-6,4)
B. (4,-6)
C. (4,9)
D. (9,4)