A playwright can write any of those listed above for a play.
Answer:
A
Explanation:
The sentence has the word to in front of the verb walk. This makes walk an infinitive verb.
If I were to answer this I would say A
Answer:
I think it's correct already. But if you want to rephrase it then maybe you can go with "The Starboard and the Port are the only two sides of a ship."
I hope it'll help you :)