6. After a man suffered a stroke, he was unable to use his left arm. What happened inside his body during the stroke that led to his losing the ability to use his left arm? A. A blood clot blocked an artery leading into his left arm during the stroke. B. Aging capillaries in his left arm collapsed and shut down during the stroke. C. A surge of blood into his brain rearranged some neuron connections during the stroke. D. Blood flow to a portion of the right side of his brain was cut off during the stroke.​

I'm pretty sure it's D but don't quote me on that

option number one would be youre best option

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.