____ can occur when there is a column in a table that is dependent on only a portion of the primary key.

If Battery is a class with a constructor function that takes a single parameter, then this statement b = Battery(c); is equivalent to

a. b = (Battery)c; b. Battery(b, c); c. c = Battery(b); d. Battery(c, b);

Software is usually distributed on _____ or as Web downloads.

A. CDs or DVDs B. Hard disks C. Blu-ray disks D. USB flash drives