A, C, then B. <span>Hope this helps! Brainliest would be appreciated!</span>
The right option is; c. many days of cloudy, wet weather
A stationary front is a pair of air masses that forms when a cold front or warm front stops moving because neither of them is powerful enough to move the other. A stationary front may stop moving for days and it can cause a cloudy weather with significant amount of rain or snow, especially if the front occurs in a region that has low atmospheric pressure.
As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.
Embryo undergoes mitotic divisions throughout its development. Since the number of cells increases with each mitotic division, it is important all of them to persist in normal cell division. That way the embryo development will end successfully when a baby is born. But, if all cells of the embryo fail to go through S phase, the DNA will not replicate. As mentioned, DNA replication occurs in the S phase of mitosis. <span>A cell cycle will be interrupted and the mitotic divisions will stop. Consequently, the embryo will die.</span>