Which of the following is the incorrect comma usage?

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1 point
I like swimming, which is a highly recommended form of exercise.
My foster dogs enjoy running, jumping, and playing when I take them to the dog park.
Many people admired Eleanor Roosevelt, a great first lady.
The ACT can seem intimidating but knowing how to use commas, can relieve quite a bit of stress.

1 answer

The incorrect comma usage is in the last sentence: "The ACT can seem intimidating but knowing how to use commas, can relieve quite a bit of stress."

A comma is incorrectly placed before "can" and should be removed for correct sentence structure. The correct version would be: "The ACT can seem intimidating, but knowing how to use commas can relieve quite a bit of stress."