Select the most appropriate option to fill in the blank.

We’ll accept your application _______ you fulfil all the conditions.

provided

The most appropriate option to fill in the blank is provided.

The sentence is about the conditions that need to be met for the application to be accepted. The word "provided" is a conjunction that indicates a condition that must be met. In this context, the speaker is saying that the application will be accepted provided that all the conditions are met.

The other options are not as appropriate.

• So that indicates a purpose. This is not the most appropriate option because it does not indicate a condition that must be met.
• Although indicates contrast. This is not the most appropriate option because it does not contrast with the fact that the application will be accepted.
• Even if indicates a concession. This is not the most appropriate option because it does not indicate a concession to the fact that the application will be accepted.