Answer:
Los niños están durmiendo con los padres.
Explanation:
The circulatory system is one that is responsible for distributing veins, blood and nutrients throughout the body with the help of the organ that drives all this blood, which is the heart.
Actually the correct answer is D. tendrá. Because A would be if you were talking about yourself. B would be if you were taking about a group including yourself, and C would be right if you were talking about a group not including yourself.
