12. How much current is drawn by a lamp that has a resistance of 150 ohms 1 point

according to ohms law v= ir so i =50/150, =0.33

Option a): level has been with us for a long time as early as at least 3rd century BC.,

b) is a fairly recent development around 1950s

c) electricity has been discovered in 17th century, so before b)

d.) theory of evolution dates back to the middle of 19th century, so before b)

therefore b) is the best answer.