What is the molecule shown below?н син н Н НТТТТТТн-с-с-с-с-с-с-н||||||H H CHOH Н НO A. OctaneOB. 4-propylpentaneOC. 2,3-dimethylhexaneOD. 2-pentylpropane

This molecule in the question presents 6 Carbons in its main chain, counting only the carbons in the middle, which makes it a Hexane molecule. Besides the main chain carbons, we also have two methyl groups linked to carbons 2 and 3, counting from left to right. Therefore the final name will be:
2,3-dimethylhexane. Letter C