I would say the answer is A I really hope this helps! :)
Hydrogen is the exception to the octet rule
Carbon, oxygen and nitrogen always follow the rule
<h3>
Answer: Scientist can determine if an object should be classified as living or non-living cells by looking under a microscope with a slide. If the slide has cells in it, it is considered alive and if the cells contain food, water, exposed waste, and environment, it is alive. If the object or slide does not have any cells in it, it is considered non-living because for a cell to be alive, it needs cells in it.</h3>
It’s the letter C.................
Teach better , make sure we have a good understanding of things
