Question

1. come up from the floor of a cave

stalactites
stalagmites
jaxites
fractals

Explanation:

Stalactites hang from the ceiling of a cave, while stalagmites rise from the cave - floor. Jaxites is not a common cave - related formation term. Fractals are a mathematical concept, not a cave formation that comes up from the floor.

Answer:

B. Stalagmites