Poll: He told the dog to lay down.

Jenny

'lie' is present tense 'lay' is past tense so in this context 'lay' is incorrect

Rob

I'm gonna go "lay" down, that sounds present tense to me, I'm gonna go "lie" down does also

Victoria Warren

lay is a transitive verb meaning put or place eg Lay the book on the desk.
lay, laid, laid

lie is intransitive meaning recline or situate eg. I'm going to lie down.
lie, lay, lain

tom3m

sleazy

It would be wrong if by using that sentence we intend saying "sit down" (instead of lay down)

zaitun

the answer is A