The correct answer is the Synonymous definition.

• 'A plant is a vegetable organism' is an example of a Synonymous definition.

• Synonymous definition
  • It means defining a word or symbol by giving a similar meaning to another word or symbol.
  • It gives the word an identical meaning.
  • Limitations
    • Sometimes there are no exact synonyms of the words.
    • Can't be used in the theoretical definition.
  • In the above example, the word 'Plant' has a 'Vegetable' synonym.
    • Another synonym of Plant is an herb, weed, flora, etc.

• Accidental definition 
  • ​It is an informal logical fallacy.
  • It is also called the fallacy of the general rule.
  • In this fallacy, one uses a general rule to a situation in which the rule is inapplicable.
  • Example: Human beings have the ability to sing. Therefore, all people are capable of singing.
• Negative definition
  • It is a logical fallacy.
  • It demands that the word or symbols should not be negative.
  • In other words, it depicts what a term means not what it does not mean.
  • Example: A chair is furniture that is not a table.
• Figurative definition
  • It is a logical fallacy.
  • It uses more metaphorical or figurative languages.