Answer:
The most effective would be 1) Condoms have a 95% success rate protecting against the AIDS virus.
Step-by-step explanation:
The way in which a message is framed has a huge influence on perception's an opinion of people, therefore, a message should be framed in a correct and positive manner that gives the positive information about the subject.
The first statement tells about the high success rate of using condoms which will create a positive impact in the people's mind but the second statement is telling about the failure rate of condoms which will create a negative impact in people's mind about using condoms.
So basically both the statements are the same concept wise but the second statement is not framed correctly so it is not very much effective.