Decide, without calculation, if each of the integrals below are positive, negative, or zero. Let D be the region inside the unit circle centered at the origin. Let T, B, R, and L denote the regions enclosed by the top half, the bottom half, the right half, and the left half of unit circle, respectively.

1. ∬B xe^xdA

2. ∬R xe^xdA

3. ∬T xe^xdA

4. ∬D xe^xdA

5. ∬L xe^xdA

? Positive Negative Zero