D. 1,200
This is because if it takes 1 and a half hours **1.5** to travel through city a and city b , and the plane goes 800km per hour and 400km is half of that it then the answer has to be d.
Answer:
it is unclean
Explanation:
fish that have non-shedding, non-overlapping, diamond-patterned, or imbedded scales should be considered unclean.
B according to my school.