I believe the answer is D: Early followers had different opinions about who would lead them.
After the death of Prophet Muhammad, nobody knew who would lead them again, and the religion split apart into two due to this.
According to npr, most of the Prophet Muhammad's followers wanted the community of Muslims to determine who would succeed him; a smaller group thought that someone from his family should take up his mantle.
<em>If this is incorrect, please, don't refrain to tell me. Thank you. </em>
The correct answer is A) The space shuttle program has come to an end.
The author thinks that the time may now be right to focus on ocean research because the space shuttle program has come to an end.
The main argument for the author to support ocean exploration is that he considered that the space shuttle program of NASA had already ended in 2011. Too much money -billions of dollars- had been invested in the space program, and now it was time to enter the unknown territories of the oceans.
The author is probably right. We do not much about oceans and what could be under the sea. That is a real mystery. We have explored enough about the space, according to our possibilities and limitations, but practically the ocean is unknown. So ocean exploration would be a real challenge.
Meiosis produces haploid gametes (ova or sperm) that contain one set of 23 chromosomes. When two gametes (an egg and a sperm) fuse, the resulting zygote is once again diploid, with the mother and father each contributing 23 chromosomes.
Answer: Perquisites
Explanation:
Perquisites are benefits an employee enjoys from occupying a particular job position, these benefits are different from the employee's fixed salary. An example of perquisites is the gifts both in cash and kind that a team's coach would receive from his/her team overtime.