When compared to traditional commerce a. e-commerce transactions are more expensive b. e-commerce transactions are less secure c. e-commerce transactions can save money d. e-commerce transactions are more fraud prone

C - e-commerce transactions can save money.

Explanation:

E-commerce (electronic commerce) is the buying and selling of goods and services over an electronic network, most likely the internet. As they could be business to business, business to consumer or consumer to consumer or any variation, gives more freedom to buy or sell your product or whathever you want. This way, without intermediaries in between, you can even save some money.

the rebels’ chances of victory at lexington & concord were fairly slim, given the fact that most of them very untrained and they were up against the world's greatest military force.  

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.