If the middle light were to burn out what will happen to the other 2 lights a) lights 1 (closest to the power source) and 3 (farthest from the power source) will continue to work b) lights 1 and 3 will stop working c) light 1 will work but 3 won’t d) light 3 will work but not 1

Consider u = {x|x is a negative real number}which is an empty set? o {x|x eu and x has a negative cube root}o {x|x eu and x has a negative square root}{x|x eu and x is equal to the product of a positive number and -1}{x|x eu and x is equal to the sum of one negative and one positive number?