I believe the answer is C.
Basaltic lava flows easily. Basaltic lava flows erupt primarily from shield volcanoes, scoria and spatter cones, and fissure systems.
During growing season when the plant photosynthesises (spring and summer) they travel down to the roots to be stored.
they go upwards when photosynthesis doesn’t occur (winter) to provide nutrients and cellular energy to parts like the leaves.
hope this is what you needed!!
