The correct answer is the following.
Here is the correct order according to the New Testament.
The first book is "Mark." Then, it comes "Acts," followed by "Colossians," "Second Timothy," and "Titus."
Let's remind that the Bible is divided into two parts, the Old Testament, base on Hebrew texts, and the New Testament. that is the four gospels writers works: Mark, Jhon, Mattew, and Luke.
It was Eusebius who created a system for classifying the New Testament books.
We are talking about Eusebius of Caesarea (260-349). He was the first interested in compiling all kinds of texts and information to create a historical document of Christianity. That is why modern theologists consider him "the Father of the Church. It was a great deed because before his work, there was no order of books or chronological selection of documents or events.