Language refers to the a. general intelligence factor that underlies many specific abilities. b. rules by which we derive meaning from speech sounds. c. rules for combining words into grammatically sensible sentences. d. spoken, written, or signed words and the ways they are combined to communicate meaning.

D. Spoken, written, or signed words and the ways they are combined to communicate meaning.

Explanation:

The system of developing complex methods of communication and maintaining them done by humans particularly is known as language.

A language consists of words which can be written and spoken. The words follow rules in order to convey a message.

It has been observed that the language used in a region is similar and the farther you go from that place the language used changes. Estimates of the number of languages used in the world today is around 5000 to 7000.

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