Detailed Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Problem:[header] How to kill voles [title] Keep your grass trimmed short. [step] Underbrush and grassy areas are great for voles to create hidden runways. Get rid of tall weeds and grass that can act as perfect cover for voles. <sep> (A) Possums are the biggest threat during the winter because they tend to eat the grass, making them vulnerable to pests like urrusy species. [substeps] Do not leave your trees or bushes unattended while you're getting rid of a voles. (B) Be sure to dispose of grass and leaves when yard cleaning as exposed piles are great for voles, as are piles of wood and debris. [substeps] Think about what would be good shelter for voles and look to eliminate them from your yard. (C) [title] Limit your number of vehicles on roads and other public areas. [step] Ditch parking or stop signs on roads, and close your doors if you see voles, or they look like they're getting ready to strike. (D) [title] Start building a fence around your yard. [step] Use wood nails to fasten metal frames to wood structure or hang aluminum wire between the gaps in your fence.
Solution:
B