light rail => west rail => light rail, free transfer?

Say I ride from Tuen Mun Pier to Wetland Park, would it cost me $4.4 (free transfers on both light rail rides), $5.8(one light rail ride), $3.8 4.4 3.9=$12.1(all 3 rides), $3.8 4.4=$8.2(first light rail west rail), or $4.4 3.9=8.3(west rail second light rail) ? Thanks