What Had the Greatest Influence on the Early Courts in Britain

What had the greatest influence on the early courts in Britain with respect to their inclusion of a provision in the Statute of Frauds requiring contracts that were to be performed after the passage of one year's time to be evidenced in writing?

A) to maintain the integrity of the contractual language by all of the contractual parties
B) to facilitate spreading writing skills amongst the early citizens of the British kingdom
C) to avoid difficulties presented by the passage of time with proving past oral promises
D) to safeguard the commercial viability of the business of practising contract law