An IT systems architect is reviewing how different development environments handle program translation and execution. They document three distinct translation scenarios:

• Scenario I: The translator parses and executes the high-level source code line-by-line at runtime. No standalone machine-code executable is generated, and if an error is encountered on line 45, the program executes lines 1 to 44 successfully before halting.
• Scenario II: The translator parses the entire high-level source code file at once, performs optimizations, and outputs a self-contained, machine-executable file. Once compiled, the source code is no longer needed to run the program.
• Scenario III: The translator maps low-level instruction mnemonics (such as MOV, ADD, or CMP) directly onto their corresponding binary opcodes and operands in a one-to-one relationship.

Which of the following correctly identifies the type of translator used in each scenario?