Option D is the answer because Digital Certificate is an entity that generates electronic and distributes them upon proving their identity sufficiently. In early days there was issues with people using the certificates that were not even issued by the organizations. Today it's a cryptographic technique which uses digital signatures and gives users a digital certificate that can be authenticated anytime online by any organization and is unique for every user having it.
Option A cannot be the answer because it has nothing to do with the identity of person but rather it is for specific fields.
Option B is not answer because it has no key and score matter to do with it.
Option C Web transactions has nothing to do with the certificates.
<u>Drastic change of over society Computers:</u>
In society computer has drastically changed and it has been used to for varies purpose to do analysis or storing data, as decisions making tools. Purpose computer been found is to do huge calculation. “Compute” word has been derived to computer. Computer later stage it diverted is purpose from calculation to information store device.
Computers have heavy effect the communication in normal word and business world. Especially social media took over the control of computers. In today’s world four type of ethical issue are known in computer mainstream in the workplace they are.
1. Crime (computer)
2. failure of responsibility in the computer.
3. Protection of software records and documents etc.
4. End user data protection and privacy.
99% of computers are protected with firewalls and antivirus. But still hackers can hack the computer and steal the data.