Question about the CEH pratice exam.

in CEH
Hello, I was doing the CEH practice exam in this site. One of the question was "What type of program is commonly used to bind a Trojan.." Here are the possible answers:
A. Binder
B. Packager
C. Wrapper
D. Covert
The correct answer is Wrapper, but I'm sure that binder(wikipedia) is also used for merging two files. My question is why binder is considered as wrong? Probably wrapper is correct because of CEH study guide but binder is also correct, or I'm wrong?
A. Binder
B. Packager
C. Wrapper
D. Covert
The correct answer is Wrapper, but I'm sure that binder(wikipedia) is also used for merging two files. My question is why binder is considered as wrong? Probably wrapper is correct because of CEH study guide but binder is also correct, or I'm wrong?
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