Which alkane is the isomer of butane called 2-methylpropane?
A
Image with description A three-carbon chain has 2 lines extending from the same side of the center carbon.B
Image with description A 5-carbon chain.C
Image with description A skeletal model of a 4-carbon chain has a straight line extending from the second and third carbons in the chain.D
Image with description A three-carbon chain has a straight line extending from the center carbon.