A) A scientists invents products for companies. Nah!!! Scientist are more or less free spirited, they usually work for the betterment of the so called mankind. So this statement is wrong.
B) A person who asks questions about natural world. Ummmm that sounds sort kind of philosopher not a scientists. So this is not what a scientists does.
C) A person who defends the ideas of others. Absolutely not, rather some scientists are believed to steal ideas of others.
D) Now this is what a scientists means to me. He resolves problems, finds truth, etc.
The Middle East is considered a region because it shares a common culture. The three items that most accurately identify the shared characteristics of that culture is letters A, C, and C.
Many people speak Arabic. The Ottoman Empire controlled much of the region. Most people are Muslim.