My birthday = mi cumpleanos (with a tilde on the n...I don't have the signs...)
Emisor - Means : Sender
Mensaje - Means : Message
Canal - Means : Channel
Receptor - Means : Receiver
Contexto - Means : Context
Codigo - Means : Code
Enuciado - Means : Enuciado ??? Is that what u want.. I hope or i just sent u a COMPLETELY Offtopic message.
Its, B, Nuestras. because it means its ours as previously it says nosotros.