The scientific term for the formation of a new species is speciation. So, the correct answer would be letter d. :)
There have been sharp increase in birth to unmarried mothers in all the countries except in JAPAN. Recent research study on global children trend indicate that, the country where children are most likely to be reared by married parents is Japan, where giving birth to children out of wedlock is rare. The country also exhibit high marriage rate and cohabitation is rare.
<span>Stress can lead to many dangerous diseases and puts unnecessary pressures o your body</span>