If the corresponding points of two rational numbers on the number axis are on the same side of the origin, then the product of the two rational numbers () A. Must be positive B. must be negative C. zero D. may be positive or negative

If the corresponding points of two rational numbers on the number axis are on the same side of the origin, then the product of the two rational numbers () A. Must be positive B. must be negative C. zero D. may be positive or negative

Because the number on the right side of the origin is positive and the product of two positive numbers is positive; the number on the left side of the origin is negative and the product of two negative numbers is positive; then the product of these two rational numbers must be positive. So choose a