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".

[header] How to grow a flower wall [title] Decide where the flower wall will be. [step] Choose a place in your yard or garden where the latticework or trellis can be leaned against a wall and either has garden soil beneath it or space for containers. [title] Erect the latticework or trellis against the wall. <sep> (A) [step] Tie (using twine, wire, strong yarn, etc. ) and/or nail/staple in place, as appropriate for the surface it is leaning against. (B) [step] Do this even if it is not normally permissible for growing planters in your area. Planters will also need to be able to face a wall. (C) [step] At a minimum, the lattice or trellis should be level and set tall. [substeps] Remember that you'll need to design the lattice or trellis so that it overlaps the full length of your garden wall; and if necessary, add a stake to use as support to raise that line. (D) [step] Avoid making the lattice or trellis too close to a wall. Be careful and keep the soil level between the lattice and the wall.
A