The arrival of corpus linguistics has revitalized

Correct option is A

The arrival of corpus linguistics has revitalized the writing of observation-based grammar. Corpus linguistics is a branch of linguistics that uses large collections of text (corpora) to study language patterns. Corpus linguistics has revolutionized the study of grammar by providing researchers with access to massive amounts of data. This data has allowed researchers to develop new and more accurate theories about how language works. One of the most important contributions of corpus linguistics to the study of grammar has been the development of corpus-based grammars. Corpus-based grammars are based on the analysis of large corpora of text. This means that they are based on the actual usage of language, rather than on abstract theories about how language should work.
Corpus-based grammars have been shown to be more accurate and informative than traditional grammars. They are also more useful for language teachers and learners. For example, a corpus-based grammar might show that a particular grammatical construction is more common in certain contexts than others. This information can be used by language teachers to develop more effective teaching materials. It can also be used by language learners to improve their own writing and speaking.
The arrival of corpus linguistics has had a profound impact on the study of grammar. It has led to the development of new and more accurate theories about how language works. It has also made it possible to develop more effective language teaching materials.
Here are some of the benefits of using corpus linguistics to write observation-based grammar:
• Corpus-based grammars are more accurate and informative than traditional grammars.
• Corpus-based grammars are more useful for language teachers and learners.
• Corpus-based grammars can help language teachers to develop more effective teaching materials.
• Corpus-based grammars can help language learners to improve their own writing and speaking.