Which sentence has commas correctly placed?

A.
My sister a trained bus driver volunteered to drive us to the store.

B.
My family likes to make pizza my favorite food, at least once a week.

C.
During the dig, the construction workers made sure to wear their safety gear.

C. During the dig, the construction workers made sure to wear their safety gear.

The sentence that has commas correctly placed is C.

During the dig, the construction workers made sure to wear their safety gear.

The sentence that has commas correctly placed is option C: "During the dig, the construction workers made sure to wear their safety gear."

To determine this, let's look at each option:

A. "My sister, a trained bus driver, volunteered to drive us to the store."
In this sentence, the commas are correctly placed. The phrase "a trained bus driver" provides additional information about "my sister," and is therefore set off by commas.

B. "My family likes to make pizza, my favorite food, at least once a week."
In this sentence, the commas are incorrectly placed. The phrase "my favorite food" provides additional information about "pizza," which should be set off by commas. The correct placement would be: "My family likes to make pizza, my favorite food, at least once a week."

C. "During the dig, the construction workers made sure to wear their safety gear."
In this sentence, the commas are correctly placed. The phrase "during the dig" provides additional information about the actions of the construction workers and is therefore set off by commas.

Therefore, the sentence with commas correctly placed is option C.