Match the directories with their contents.
1. BUILD/ a. contains pristine source tarball as well as any patches and other ancillary files
2. SOURCES/ b. contains the package.spec file that describes and controls RPM build
3. RPMS/ c. source tarball is extracted, patches applied, and compilation takes place
4. SPECS/ d. freshly built binary RPMs placed in these directories
A.
1-d, 2-b, 3-a, 4-c
B.
1-c, 2-d, 3-b, 4-a
C.
1-d, 2-c, 3-b, 4-a
D.
1-c, 2-a, 3-d, 4-b