which of the following correctly revised the sentence below to achieve parallel structure

A successful gymnast must have good coordination be agile and strength

a successful gymnast must be well coordinated agile and strong
a successful gymnast must have good coordination good agility and be strong
a successful gymnast must coordinated have agility and strength
a successful gymnast must have good coordination agiliy and be strong

A successful gymnast must be well coordinated, agile, and strong.

The correct revised sentence to achieve parallel structure is:

"A successful gymnast must be well coordinated, agile, and strong."

In this sentence, all three descriptions - coordinated, agile, and strong - are in the same form of adjectives, providing parallel structure.

To achieve parallel structure in the sentence, we need to ensure that the items in the list are presented in a consistent format. In this case, we are looking for parallelism between the words "good coordination," "agile," and "strength."

Let's analyze each of the given options:

1. "A successful gymnast must be well coordinated, agile, and strong."
This option correctly revises the sentence to achieve parallel structure. The sentence uses consistent verb forms ("be") for each item in the list ("well coordinated," "agile," "strong").

2. "A successful gymnast must have good coordination, good agility, and be strong."
This option uses parallel structure in terms of verb forms ("have," "have," "be"), but it repeats the word "good" before each item in the list, which is unnecessary and breaks the parallelism with the third item.

3. "A successful gymnast must coordinated have agility and strength."
This option lacks parallel structure since the verb forms are inconsistent ("coordinated," "have").

4. "A successful gymnast must have good coordination, agility, and be strong."
This option also lacks parallel structure because the verb form changes from "have" to "be" ("agility" to "be").

Therefore, the correct option that achieves parallel structure is: "A successful gymnast must be well coordinated, agile, and strong."