Answer:
Option a==> true.
Step-by-step explanation:
In the New Testament, the book of the Gospel of Matthew is the first book and it teaches on how the Journey of Jesus Christ was and the book was to prove that Jesus Christ is the Messiah that the people have been waiting for.
Going to the last chapters of the book, we can see that the message was for "all nation'' and the evidence can be found in chapter 28 verse 19 through to verse 20 which says; '' (19) Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, (20) and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age'' ( New International Version).
You can see in verse 19, it says ''all nations' and this implied the GREAT COMMISSION.