public void bindServiceTypesAndCapabilities(){
    // List<ServiceOffered__c> servicesList = [Select ID, Services__c, Capabilities__c, Sub_Capabilities__c From ServiceOffered__c];
    List<VRM_Vendor_Services__mdt> servicesList = [SELECT ID, Services__c, Capabilities__c, Sub_Capabilities__c FROM VRM_Vendor_Services__mdt];
    // Above does not like List "Unexpected token'List'" when I try to use List. Removed [] and added List<>
    lstServiceTypes = new List<Selectoption>();                     //Schema.describeDataCategoryGroups(List<String> sobjects)
    Set<String> stService = new Set<String>();
    //for ( ServiceOffered__c svcItem : servicesList ) {
    for ( VRM_Vendor_Services__mdt[] svcItem : servicesList ) {
        if ( !stService.contains(svcItem.Services__c)) {            // adding VRM_Vendor_Services__mdt.Services__c "Can't assign static to sObject fields"
            lstServiceTypes.add(new selectoption(svcItem.Services__c, svcItem.Services__c));
            stService.add(svcItem.Services__c);
        }
    }