Which of the following statements is/are false?

a. For plants, scientific names are based on agreed principles and criteria, which are provided in International Code for Botanical Nomenclature. b. The scientific names ensure that each organism has only one name and that such a name has not been used for any other known organism. c. In the scientific name Mangifera indica, 'Mangifera' represents a particular species, while 'indica' represents a genus.