Taking advantage of its weed-suppressing capacity

I wonder if "A" means 1, 2, or anything else.

A. taking advantage of its weed-suppressing capacity.

1. which takes advantage of its weed-suppressing capacity.

which=to plant young winter ryes into the decomposing leaves,

2. if we take advantage of its weed-suppressing capacity.

Winter rye is a weed-smothering green plant.
When it is dug into the soil, or cut and left on the land, it
releases chemicals as it decomposes that inhibit the
germination of small seeds for a few weeks. It is, however,
quite safe to plant young winter ryes into the decomposing
leaves, taking advantage of its weed-suppressing capacity.