Which of the following was NOT one of the ways in which Basel 2 differed from the original Basle Accord?

Question 6 options:

Banks could use their own risk management models to determine risk-weighted capital.

Ratings agency assessments of assets could be used to determine risk-weighted capital.

It introduced a leverage ratio requirement i.e. a requirement framed as regulatory capital relative to total unweighted assets.

Value-at-Risk was encouraged as a risk-management tool.