Answer :
Final answer:
The executable file produced by the gcc command gcc celsius.c -o Celsius will be named Celsius, as the -o flag specifies the output file name, overriding the default a.out.
Explanation:
When you compile a program using gcc with the command gcc celsius.c -o Celsius, the executable file will be named Celsius. The -o flag in the command line indicates that the following name should be used for the output file, overriding the default output name, which would be a.out. Thus, the names 1 celsius.c, 2 celsius, 3 Celsius, and 4 a.out included in the command are either typos or irrelevant arguments that will be ignored by the gcc compiler. The correct executable name, based on the provided command, is Celsius.