Final answer:
The remedy to correct a typo in a written contract is known as Rectification. This legal remedy corrects the wording of contracts when a mistake does not reflect the true intention of the parties. The correct answer is option D).
Step-by-step explanation:
The remedy a plaintiff would seek to correct a typo in a written contract is D) Rectification. Rectification is a remedy specifically designed to address and correct mistakes in the wording of legal documents, such as contracts. In such cases, if both parties had originally intended for a different term or a more accurate reflection of their agreement, the court can order a correction to the written document to align it with the parties' intended terms.