Why were the first four leaders of the muslims after muhammad's death called the "four rightly guided caliphs"?

a.) they had been friends of mohammed
b.)they had studied leadership for many years and were well prepared to rule
c.) they arrange for a split in the community between sunni and shia muslims
d.) these men all worlds together so there could be no question about their decisions

bacteria – a word that often brings out a sense of uneasiness in most of us are, in fact, one of the earliest forms of life. it can be quite unnerving to know that there are bacteria all over your skin, hair, and even inside the body. but only a few species of bacteria are dangerous. the majority of bacteria are good, and without them, life on earth wouldn’t be possible. let’s learn more about how are bacteria essential for you to survive.

answer; knowledge,reason,and judgement;

answer; you can turn right on a red signal (when posted);

answer; language that can promote racial stereotypes;