[Q]: Which of the following solutions is better for the following goal:
Make a nice path in the back yard.

[A]: Dig a pathway so that there's room for river rocks. pour the rocks in and set some large patio stepping stones every half foot so that you have structure. Plant flowers along the sides.

[Q]: Which of the following solutions is better for the following goal:
to accommodate many birds at a bird feeder

[A]: attach many different perches to the sides of the bird feeder using a hammer and nails or glue

[Q]: Which of the following solutions is better for the following goal:
In order to paint barn doors,

[A]: dip a brush in paint, then apply strokes to the doors until they're covered.

[Q]: Which of the following solutions is better for the following goal:
To ensure the Parrot Play Gym made from a tree branch can fit in your house.

[A]:
Measure all the doorways you will be moving the gym through and cut the branch accordingly.