Change the following sentence into the active voice; also revise the sentence for clarity and brevity: The animal numbers for each group are chosen to achieve an adequate sample size to be able to observe a signal for effect in the behavioral tests.

Scientists choose a representative sample of animals to measure the tests' effectiveness.

Explanation:

now lets look at the choices we have

a)students as entrepreneurs

b)courage and determination

c) artificial intelligence

i don't think ai (artificial intelligence) has anything to do with this.

(a) would be wrong because entrepreneurs are people who start their own business.

so it came out to be b i think this is the right answer because you will need courage to make your own stories/skit and you will need determination to keep on going even if you mess up.

the answer would be b.