Gum tumor with 2 contralateral mobile lymph nodes in cheek comes under -a) T3N2M0b) T2N2M0 c) T4N2M0d) T3N3M0
As the size of tumor is not mentioned so it may be any T.
Since 2 contralateral mobile lymph nodes are present it will be N2 stage.
No local invasion given so it can be T1 or T2 or T3 but not T4.

So stage will be :
- T3N2M0
- T2N2M0
ab
a
ad
bc