There is really no specific answer because there are many types of glaciers and different ways they form.
The correct answer would be c. But beware, for and they be small, For after death amends may no man make, For then mercy and pity doth him forsake. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
That is known as a (Hook) or grabber, because it grabs the readers attention !<span />