Answer:
a. plucking
Step-by-step explanation:
- The terms plucking also refers to the quarrying and is a glacial phenomenon and is responsible for the erosion and transportation of the individual pecs of bedrocks and especially the larger rock joint blocks and this occurs in valley glaciers.
- And is a result of the glacier downwards movement was the glacial ice infiltrates and it occurs were there is a preexisting fracture in the rocks.