why is this a strong claim for a argumentative essay?

it is a opinion that is supportable
it is a positive statement
it is a false statement
it is a fact

The statement "it is an opinion that is supportable" is a strong claim for an argumentative essay because it suggests that there is a clear argument to be made in support of the opinion. This gives the writer a solid foundation for their essay and allows them to present evidence and reasoning to back up their position. It also implies that the opinion is not just a personal belief, but can be backed up with facts and logic.