Final answer:
A clay mask is designed to contract pores and absorb oil and debris from the skin, thanks to oil-absorbing ingredients such as kaolin or bentonite.
Step-by-step explanation:
The type of mask that contracts pores and absorbs oil and debris from the skin is a clay mask. This mask works effectively to purify the skin by absorbing excess oils and removing impurities from the pores. Clay masks often contain ingredients like kaolin or bentonite, which are known for their oil-absorbing properties.
The options provided in the question contain substances or compositions not typically related to facial masks but rather to other fields or contexts. For example, option a lists a polysaccharide gel and dead cells, which do not describe the contents of a typical clay mask aimed at contracting pores and absorbing oil.