What is the effect of a visa officer's assessment of an applicant in the self-employed category?

In the result, I am regrettably unable to conclude that, in assessing the applicant in the self-employed category, the visa officer erred in law. A decision is reasonable if it is supported by a tenable explanation even if this explanation is not one that the reviewing court finds compelling. The question is whether the reasons, taken as a whole, are tenable as support for the decision: Law Society of New Brunswick v. Ryan, 2003 SCC 20, [2003] S.C.J. No. 17. Here, the visa officer's findings are reasonably supported by the evidence.