Which sentence correctly forms the plural of 1990? a. my older brother was born in the 1990's. b. my older brother was born in the 1990s'. c. my older brother was born in the 1990s.

The only sentence from the list of options that correctly forms the plural of 1990 would be "A. My older brother was born in the 1990's" since an apostrophe is needed. 

There is nothing inherently wrong with being gay. speaking generally, opposition to gays are usually judged on people's moral basis whether it be religion, experience or other factors. to conclude, there is no objective answer to this question only subjective ones that rely on people's idea of what is right and wrong.