<h2>eXclusive OR</h2>
<h3>✅X. (eXclusive OR) A Boolean logic operation that is widely used in cryptography as well as in generating parity bits for error checking and fault tolerance. XOR compares two input bits and generates one output bit. The logic is simple. If the bits are the same, the result is 0.</h3>
Http://www.oneandonlycampaign.org/safe_injection_practices
Which function can you use to abbreviate the lengthy expression, A1+A2+A3+A3...+A19+A20? SUM
I miss read the question the first time....the answer is C.
