Answer:
Penguins are flightless birds, but they are expert swimmers. Strong breast muscles allow penguins to flap their wings and "fly" through water to catch fish and shrimps. A penguin's webbed feet are good for underwater steering because its legs are set far back on its body.
Explanation:
<span>In 1955, engineers placed the first transatlantic telephone cable between Newfoundland, Canada, and Scotland.
This is the only example that employs active voice. A general rule is that the subject is in the first part of the sentences, followed by a verb in simple tense, followed by the object that is receiving the action. In this case, the subject (the engineers) comes first, then the verb which the subject is doing (placed), followed by the recipient object (the telephone cable).
Notice that all the other examples, the object is introduced first and the verb is described as acting on them by a subject that is later described. </span>
I would say number "A" is correct. If you read all of them out loud, pausing for each comma/semicolon, you might notice that "A" and "B" sound the most reasonable. It may depend, but I would go with number "A" because the semicolon makes a bit more sense than a comma. It can be tricky to identify the difference sometimes. I hope this helped :)
