It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. The protocol that supports the encryption and decryption of e-mail messages is this: <span>Secure Multipurpose Internet Mail Extensions (S/MIME) and Pretty Good Privacy (PGP). Hope this helps.</span>
A tablet<span> is a wireless, portable personal computer with a touchscreen interface. The </span>tablet<span> form factor is typically smaller than a notebook computer, but larger than a smartphone.
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B) Advertising is the answer