Select the phrase(s) from the given three options which can be used to form a single sentence from the two sentences given below, implying the same meaning as expressed in the statement sentences. The given options may or may not be starters.
A. Schools are under great pressure to visibly take action against bullying.
B. Caution is needed, especially in high schools, because many programs that sound like a good idea can make bullying worse. 1. However, caution is… 2. Though caution is needed… 3. Since schools are…

The sentences are contradictory - A tells us that schools are under pressure to take action against bullying, and B contradicts it by telling us how caution is needed because many programs that are well-intentioned can worsen the problem. 1 is correct as HOWEVER is used to show contradiction - “Schools are under great pressure to visibly take action against bullying, however, caution is needed, especially in high schools, because many programs that sound like a good idea can make bullying worse.” 2 is correct as THOUGH is used to show contradiction - “Schools are under great pressure to visibly take action against bullying, though caution is needed, especially in high schools, because many programs that sound like a good idea can make bullying worse.”