A customer requires reliability for voice traffic and has MPLS, biz-Internet, and public-Internet transports. Which control policy configuration maintains a better SLA and avoids blackholing of voice

Question

Exhibit

Options

• APolicy configuration starting with 'policy sla-class VOICE_TRAFFIC latency 0' and specifying preferred-color mpls.
• BPolicy configuration starting with 'policy sla-class VOICE_TRAFFIC latency 50 loss 5' and specifying preferred-color mpls with backup-sla-preferred-color biz-internet.
• CPolicy configuration starting with 'policy sla-class VOICE_TRAFFIC latency 150 loss 5' and specifying preferred-color mpls with backup-sla-preferred-color biz-internet.
• DPolicy configuration starting with 'policy sla-class VOICE_TRAFFIC latency 150 loss 5' and specifying preferred-color mpls (no backup color shown).