As we know that amylose is a straight chain molecule, therefore it forms helix and consists of branching. This is the reason why amylose has no branch points.
However, amylopectin is a branched chain molecule polymer. The monomer unit in both amylose and amylopectin is glucose - D connected at 1, 4 carbon . The number of glucose molecules are higher in amylopectin than the amylose.
Hence out of all given options, option A is correct
