Question

the topic sentence below is...
thesis
although cruel, the maze experiment is necessary for the boys to
discover their true natures.
topic sentence
the grievers appear invincible, but they have their own
limitations.
strong weak: not a claim
weak: off topic weak: redundant
the maze
runner

Explanation:

The thesis is about the Maze experiment's necessity for boys to discover their true natures. The topic sentence is about Grievers' limitations, which is not related to the thesis's focus (the experiment and boys' natures), so it's off - topic.

Answer:

Weak: Off Topic