Answer: A and D
Step-by-step explanation:
It isn't abnormal for a forestry area to be in only 1 part of the region. It's probably just an area where the climate is better for plants to grow, so not B.
The shape of a land form doesn't really matter. Italy is shaped like a boot and that doesn't make it any worse so not C.
If the symbols in forestry and the orchards don't serve a negative effect, how would it be known? That can't be told from just a map, so there is certainly bias in D.
The gray smoke and yellow explosion sign mean it's hazardous, but that can't be told from just a map, so there's a bias from that so A is biased.
Hope that helped a lot.
:)