Which of the following integrals calculates the area of the region bounded by the lines y = 3x, y = -3x, x = -2, and x = 0? B. None

of these. \text { A. } \int_{-2}^{0}-6 x d x \text { C. } \int_{-2}^{0} 6 x d x \text { D. } \int_{-2}^{2}-6 x d x \text { E. } \int_{-4}^{4}-6 x d x