Charlotte has set up a home maintenance service that operates out of her city. Workers commit to being available for certain hours during the week. Charlotte takes calls and schedules workers according to their skills and availability. Work assignments are made on the company's database. Workers check their work assignments from their home offices located throughout the city. After completing each job, workers update the database. The network Charlotte's business uses is most likely a .

A: LAN
B: MAN
C: WAN

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.