Explanation:

- The story refers to Greek mythology where Atlas is punished to hold the sky.

- Hercules (1) agreed to hold the sky temporarily while Atlas fetched (2) golden apples.

- Hercules was (3) trying hard under the immense weight.

- The weight (4) made him sweat and groan.

- Atlas, seeing this, didn't want to (5) take back the burden of such a hard task.

Options:

- 1, "take out": Means to remove something, not suitable here.

- 2, "take in": Means to absorb or understand, irrelevant in this context.

- 3, "take away": Means to remove something to a different place, doesn't fit the meaning.

- 4, "take back": Means to resume responsibility or repossess something, correct for the context.