Which is the best paraphrase of the instructions?

Beginning riders tend to press too hard on the pedals, which can then cause the bike to fall over. Pedaling with poor balance is not only hard work, but it can also result in blisters and stiffness.

hope that helped <3

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Explanation:

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

can you elaborate on what the question asks?