Answer: A.) Ser
Explanation: Mi novio ser colombiano
Explanation #2:
The Ser vs. Estar Question: To Be or to Be?
To be or to be?
While the phrase doesn’t have quite the same ring to it as Hamlet’s famous words, it’s a question you might find yourself asking when faced with two Spanish verbs that both mean “to be”: ser and estar.
Like the subjunctive tense and the world of Spanish plurals, this is one of those questions where a nice set of rules is exactly what you need.