Answer:
c. a trait with four alleles
Explanation:
" This is the most stupidest answer / question ever!"
i think since we have gone as far as our solar system boundaries the next big thing to achieve is to actually travel to another solar system, the challenge that would face anyone trying to reach another solar system is the distance, the distance is too long to cut with a speed slower than the speed of light in fact even the speed of light is not convenient for someone to travel and reach the other side before he dies and nothing can reach or exceed the speed of light because then they would lose their mass to energy, two proposed technologies to get past that is hibernation which is keeping the body alive in a sleeping state using a break through technology the other would be using a wormhole but we don't know of any in the moment
the time it took for the water to drain through (i think)
I believe is the thermoreceptors present in the skin as well as part of the brain called hypothalamus.