Which sentence does not have a redundancy problem?
a.
i used a screwdriver to punch a hole in the bottom of the plastic planter.
b.
the end result of my weekend efforts was a beautiful container garden.
c.
i decided to postpone fertilizing the plants until later.
d.
it was very difficult to find a plant saucer that was square in shape.

I'd have to say A.

Explanation:

I don't know if that's right, but idk

A.  I used a screwdriver to punch a hole in the bottom of the plastic planter.

Explanation:

This sentence does not have a redundancy problem. Something that is redundant is repeated. In option C, the redundancy problem is "postpone" and "until later". These mean the same thing. In option B the redundancy is "weekend" and "end". In option D, the redundancy is "square" and "shape". A square is a shape so this is repetitive.