Gallaf. A gaf i ddiolch i'r Aelod am ei chwestiynau, a dweud bod fy nghalon innau hefyd wedi suddo pan ddaeth y mater hwn - canlyniadau'r ffaith bod yr Adran Drafnidiaeth wedi methu ag ymgysylltu â ni yn gynharach, neu wedi methu ag ymgynghori â ni - i'r amlwg? Gallaf gadarnhau na fydd hyn yn byrhau'r ymchwiliad. Rwy'n credu ei bod yn hollol gywir a theg bod pob unigolyn a phob sefydliad sydd â buddiant yn y pwnc hwn yn gallu cyflwyno eu hachos a chael eu clywed. A byddwn, wrth gwrs, yn cyhoeddi ein model diwygiedig cyn gynted ag y bo hynny'n bosibl, fel yr wyf eisoes wedi eich sicrhau.

Yes. Can I thank the Member for her questions, and say that my heart also sank when this matter - the consequences of the Department for Transport's failure to engage with us earlier, or to consult with us - came home? I can confirm that this will not shorten the inquiry. I think it's absolutely right and fair that every person and every organisation that has an interest in this subject is able to present their case and be heard. And we will, of course, as I've already given assurance, publish our revised modelling as soon as that is possible.

Nid oes unrhyw amheuaeth o gwbl yn fy meddwl i bod yr hyn sydd wedi ei wneud gan Lywodraeth y DU o ran budd-daliadau wedi targedu'r rhai mwyaf agored i niwed. Mae'r dreth ystafell wely yn un enghraifft o hynny, ac mae hi wedi crybwyll enghraifft arall yn y fan yna. O'm safbwynt i, bernir cymdeithas ar sail pa mor dda y mae'n gofalu am ei rhai mwyaf agored i niwed, nid trwy dargedu ei rhai mwyaf agored i niwed.

There's no question at all in my mind that what's been done by the UK Government with regard to benefits has targeted the most vulnerable. The bedroom tax is one example of that, and she has mentioned another example there. From my perspective, society is judged according to how well it looks after its most vulnerable, not by targeting its most vulnerable.

Ni allaf ddeall pam nad yw'n bosibl ychwanegu atodiad at y gosb benodedig bod yn rhaid cynhyrchu tystiolaeth bod yr arian wedi'i ad-dalu. Nid oes angen iddo fod yn unrhyw beth mwy na chopi o'u datganiad banc sy'n dangos bod yr arian wedi'i ad-dalu.

I'm unable to understand why it's not possible to simply add as an addendum to the fixed penalty that evidence must be produced that the money has been repaid. It doesn't need to be anything more than a copy of their bank statement that shows that the money has been repaid.

Ie, dwi'n credu y buasai hynny'n gallu gweithio, ond beth fydd yn rhaid cydnabod ydy y bydd y costau'n uwch, ac felly efallai fydd nifer y mesurau sy'n cael eu rhoi i mewn yn llai, felly. Roedden ni'n sôn gynnau am beth ydy'r gost o wneud gwaith mewn ardal wledig, a hynny, efallai, ar fesurau rŵan; dŷn ni ddim yn sôn am air-source heat pumps a phob math o fesurau i'r dyfodol. Felly, mi fydd y gost yn llawer iawn uwch.

Yes, I think that certainly could work, but what we'll have to recognise is that the costs will be higher, and therefore the amount of support provided may be less. We mentioned earlier the cost of working in rural areas, based on current measures; we're not talking there of air-source heat pumps and other future measures. So, the costs will be a lot higher.

Ond dyw e ddim yn gorfod bod fel yna, achos mae ieithoedd lleiafrifol eraill yn gallu mynd dros y byd, so mae'r ffordd rŷn ni'n gwerthu'n hunain a phwshio'n hunain allan y tu allan i Gymru yn bwysig hefyd.

But it doesn't have to be that way, because other minority languages can work across the world, so the way that we sell ourselves and promote ourselves outside Wales is also important.