Which sentence from passage a best explains why identity theft has become a problem in the world today?

a
many people do not realize how easily criminals can obtain our personal data without having to break into our homes.

b
if you receive applications for “pre-approved” credit cards in the mail, but discard them without tearing up the enclosed materials, criminals may retrieve them and try to activate the cards for their use without your knowledge.

c
in recent years, the internet has become an appealing place for criminals to obtain identifying data, such as passwords or even banking information.

d
with enough identifying information about an individual, a criminal can take over that individual’s identity to conduct a wide range of crimes.