Correct option is D. All of the above
The system of binomial nomenclature was developed by Linnaeus. There were certain rules which were made for writing the scientific names. They are as follows:
1. Each organism is given only one name consisting of two words - generic and specific.
2. The scientific name is printed in italics. It is underlined in a hand-written description.
3. The generic name is written first. It is followed by a specific name and the name of the discoverer in full or abbreviation.
4. The name of the author is written in Roman script.
5. The original names were taken from Latin and Greek languages. New names are derived from the Latin language as Latin is a dead language and therefore it will not change in form or spelling with time.
Thus, the correct answer is option D.