Consider the following function: (( x ) = v x 2 + 8 if * 1 Determine if f(x) is continuous at x = 1. If not, select the option with the correct reasoning as to why not. a.) Not continuous at x = 1 because lim f(x) # f(1) x - 1 b.) Not continuous at x = 1 because f(1) is undefined c.) Continuous at X = 1 O d.) Not continuous at x = 1 because lim f(x) does not exist X - 1