The first alternative is correct (A).
The act of murdering or abandoning an incapable child is called infanticide. If the baby is a girl, it is called female infanticide. This is a cruel practice in today's society that is an aggravated crime because the child is unable to defend himself. However, in ancient cultures like some indigenous tribes this is still accepted and occurs when the child is born with some deficiency. In that case, the authorities must intervene to save the baby.