The increased proportion of the public who were undecided on the matter wanted more information on how it would work and greater clarity around definitions that were part of the legislation.
Roedd y gyfran uwch o'r cyhoedd nad oeddent wedi penderfynu ar y mater am gael rhagor o wybodaeth am sut y byddai'n gweithio a mwy o eglurder ynghylch diffiniadau a oedd yn rhan o'r ddeddfwriaeth.