Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Cymbopogon citratus is known as citronella grass which is a native of Sri Lanka.
Reason R: Citronella grass essential oil has significant amount of Citronellal and Geranoil content, besides Geranial and Borneol.
In the light of the above statements, choose the most appropriate answer from the options given below: