Knowlege of English language options

Hi there

There are 2 options to show the proof of English knowledge for family visa

There are 2 kinds of certificate:

a statement of comparability
a visa and nationality statement

My wife has a degree from Australian University but studied in Sri Lanka

Based on the website (https://www.gov.uk/uk-family-visa/knowledge-of-english) she can do a statement of comparability to get the certificate?

Someone please confirm it is enough ? And don't require the visa and nationality statement.

Regards