<span>B. Efficiency
(</span><span>effective training </span><span>techniques)</span>
<span>An attribute in a relation of a database that serves as the primary key of another relation in the same database is called a</span>
Yea, I don’t think you can fix it unless you backed it up or something somehow...
Answer:
the answer is computer, phone, laptop
Explanation: that is all ik
