Answer: there are many alternatives to the nuclear family.
Explanation: The most common type of family in the U.S is the nuclear family. The two examples of the Yugoslavia and the Southern Indian clearly depicts that apart from the nuclear family we commonly know, other cultures live in many alternatives type of families.
D) the law of increasing costs.
Microscopes help the scientists to study the microorganisms, the cells, the crystalline structures and the molecular structures, They are one of the most important diagnostic tools when the doctors examine the tissue samples.
I’m bout positive The answer is A
