Which plant characteristics are vital for drought resistance?

The characteristics that are vital for drought resistance include deep root systems and thick, waxy leaves. Deep root systems allow plants to access moisture from deeper soil layers, which is particularly important during dry periods when surface water is limited. This adaptability helps the plant survive longer during times of drought by reaching reserves that shallower-rooted plants cannot access.

Thick, waxy leaves help to reduce water loss through transpiration. The waxy coating minimizes evaporation by providing a barrier that helps retain moisture within the leaves, which is critical for maintaining hydration during periods of low water availability. This combination of deep roots and specialized leaf structures enables the plant to thrive in arid conditions and supports its overall resilience against drought.

Other options propose characteristics that may not effectively support a plant's water conservation strategies during times of limited moisture, highlighting the suitability of deep roots and thick, waxy leaves for thriving in drought-prone environments.