Question: Why do public keys used for TLS need to be certified by a Certificate Authority ( CA ) ? ( i . e . VeriSign

Why do public keys used for TLS need to be certified by a Certificate Authority (CA)?(i.e. VeriSign etc.)
Question 12 options:
Because they are used as a form of authentication
To ensure no errors in the key, when it is created
In order to use stronger encryption
There is no reason for this to occur

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