Determine between which consecutive integers the real zeros of f(x)=x^3-3x^2-2x+4 are located. a. between −2 & −1, between 3 & 4, and exactly at 1 c. between −1 & 0, between 3 & 4, and exactly at 1 b. between −2 & −1, between 3 & 4, and exactly at –1 d. between −2 & −1, between 1 & 2, and exactly at 1