What is the testicle bag called

The testicle bag also known as the "sac" is called the scrotum. This is the sac that holds the testicles "male sex gland" and maintains their temperature.

answer; i believe that the correct answer is (a) restriction);

i don't think so because different teachers have different materials. tehy teach differently, unless you know for sure your teacher is the exact same as others. i would just contact ur teacher