The Europeans made few attempts
a is the answer (at least that's what i believe)
Answer:
Fact.
Explanation:
A proposition of fact is considered to be a statement in which the focus is primarily to make the audience (e.g arbitrator) believe in it as the truth of false.
In other words, a proposition of fact may deals basically on the existence or non existence, occurrence or non occurrence of something.
Hence, in this case, Since they were focusing on whether something did or did not happen, they were arguing a proposition of FACT.
