What guidance should be provided to parents who believe their baby is safer sleeping in their bed? a) Room-sharing without bed-sharing reduces the risk for SIDS by as much as 50 percent. b) Bed-sharing is safe as long as the parents don't smoke or use alcohol or illegal substances. c) If they want to share a bed with their infant, the bonding benefits may outweigh the risks. d) If they share a bed with their infant, they should take turns staying awake to monitor their infant's breathing.