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The number of arguments a complex term in prolog is called as its :

  • A.Arity
  • B.Atom
  • C.Numbers
  • D.Constants

Answer: A

The number of arguments is the term's Arity.

In Prolog a complex term (compound term) consists of a functor and a list of arguments, such as likes(mary, wine). The number of arguments is its arity; this term has arity 2, and predicates are written with it, as likes/2.

An atom is a constant name such as mary. Numbers and constants are kinds of simple terms, not the count of arguments of a complex term.

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