Select the correct answer. The hiking club is getting new T-shirts and will vote to choose the design. Marianna and Chloe are each designing a T-shirt using a
computer program. Marianna's design features an image of the mountains, with the peaks and valleys modeled by function m, wherex
is the horizontal distance, in inches, from the left edge of the design.
m(x) = -1.4x^4 + 16.6x^3 – 68.3x^2 + 112.9x – 50
Chloe's design also features an image of the mountains, with the peaks and valleys modeled by function c, where x is the horizontal distance, in inches, from the left edge of the design.

Which t-shirt design has the lowest valley floor over the first 6 inches of the design?