When the chipmunk cells use the plant sugars to obtain energy in order to carry out the cell processes, the chemical energy present in the sugars is getting converted into the kinetic energy. The plant sugars are broken down into its components in order to release the stored energy (potential energy). When released, this energy helps in carrying out various functions, such as respiration, digestion, etc (kinetic).
Hence, the answer is 'Option A - chemical energy -> kinetic energy'.
