What kind of usage is the following sentence The ate cow brown the grass. A. ungrammatical usage B. nonstandard C. grammatical D. standard usage?

A. Ungrammatical.

You cannot move verbs and adjectives around as freely as you can with some adverbs.

"The brown cow ate the grass" or less likely "The cow ate the brown grass."

The adjective normally precedes the noun, and an article (the) is ALWAYS followed by a noun, not a verb, although it could precede a gerund.