Which of the following is the clearest and most effective sentence? john's sister who was the prettiest girl at the party. b. john is a man with a sister who is attractive, and they both went to a party together c. the party included attractive females of all all ages, and one was a sibling of a man known as john. d. the sister of john was attractive more than others who attended a party.

The answer is A. John's sister was the prettiest girl at the party.

It gets right to the point while still conveying the message clearly

answer: from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion—that we here highly resolve that these dead shall not have died in vain, that this nation under god shall have a new birth of freedom, and that government of the people

explanation:

the universe is complete credible source of our oxygen