4.Spam (junk e-mail) is a major annoyance for many people who use the internet. However,

spammers sometimes have to send thousands of messages to get even one response that pays

money. Given this information:

A.spamming cannot be profitable because of the low numbers of buyers; its sole purpose is to

annoy others.

B.spamming cannot be profitable because of the low numbers of buyers; it is fraudulently

profitable.

C.spamming can be profitable even with very low numbers of buyers because the marginal cost

of sending spam is virtually zero.

D.as many other activities on the internet, spammers are only profitable because they rely on the

fees from advertising.