Which of the following is an L-amino acid? 
Definitions:
Validity
The accuracy of a given measurement.
Consistency Result
Consistency result describes a situation in logic or mathematics where a set of statements or equations do not contradict each other and can coexist without generating errors.
Secondary Analysis
A research method involving analysis of existing data.
Code Analyze
The examination and evaluation of source code to identify errors, improve efficiency, and ensure that it meets all the necessary requirements or standards.
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