Suppose you want to refute the statement:  For all natural numbers a, b, and c, if a | b and a | c then (b+c) | a.  Which of the following would be an appropriate strategy for you to employ? Group of answer choices Show specific values for a, b, and c where a | b, a | c, and (b+c) | a. Show specific values for a, b, and c, where (b+c) | a but either it is not true that a | b or it is not true that a | c. Show specific values for a, b, and c where a | b and a | c and (b+c) does not evenly divide a. Show for any generically chosen values of a, b, and c where a | b, a | c, and (b+c) | a. Show for any generically chosen values for a, b, and c, where (b+c) | a but either it is not true that a | b or it is not true that a | c.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Suppose you want to refute the statement: 

For all natural numbers a, b, and c, if a | b and a | c then (b+c) | a. 

Which of the following would be an appropriate strategy for you to employ?

Group of answer choices
Show specific values for a, b, and c where a | b, a | c, and (b+c) | a.
Show specific values for a, b, and c, where (b+c) | a but either it is not true that a | b or it is not true that a | c.
Show specific values for a, b, and c where a | b and a | c and (b+c) does not evenly divide a.
Show for any generically chosen values of a, b, and c where a | b, a | c, and (b+c) | a.
Show for any generically chosen values for a, b, and c, where (b+c) | a but either it is not true that a | b or it is not true that a | c.
Show for any generically chosen values for a, b, and c where a | b and a | c and (b+c) does not evenly divide a.
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