Answer:
D. 
Step-by-step explanation:

Since we are multiplying an exponential number to a fraction the answer is going to be

Hope this helps ❤❤❤ ;)
The second option - 3/25.
The probability of the first one is 3 blue socks over 10 socks in total = 3/10
The probability of the second one is 4 red socks over 10 socks in total = 4/10
Multiply the two probabilities to get the probability of having the first sock as blue and the second sock as red.
3/10 * 4/10 = 3/25
The number is 12
12 + 4 = 16
4 is a third of 12 and 12 + 4 = 16.