Suppose relations R(A, C) has the following tuples A C ---
5 5
8 6
4 5
5 7
9 3
and relation S(B, C, D) has the following tuples
B C D
7 3 8
3 7 0
6 5 1
Compute the natural join of R and S. Which of the following tuples are in the result?
Assume each tuple has schema (A, B,C, D).
A. (7, 5, 1, 6)
B. (6, 4, 3, 9)
C. (7, 1, 5, 8)
D. (5, 1, 6, 4)

What is a number system, and what is the total number of digits used in this system called? a number system is a system that uses different (options: a) numbers b) symbols c) codes d) digits e) alphabets) to represent different numbers. the total number of digits used in a number system is known as its (options: 1) processor 2) converter 3) radix 4) least significant digit 5) most significant digit)