How i select auto select value if option is only one
<select class="perf-select" ng-model="viewProfileCtrl.neft.institution"
ng-options="inst.institution.institution_id as inst.institution.name for inst in viewProfileCtrl.perfiosAnalysisData.institutions"
ng-change="viewProfileCtrl.setCurrNeftInsti(viewProfileCtrl.neft.institution, 'neftCredit')">
<option value="" selected>Select a Bank</option>
</select>
My Problem is if i have multiple option it ask to select option if it have only one it needs to automatically select and dispaly the value how i fix this