The correct answer is: B. opensolaris
OpenSolaris is a free and open-source Unix operating system based on the Solaris operating system developed by Sun Microsystems. It was released on November 21, 2005, as a result of Sun’s decision to release the Solaris source code under the CDDL.
OpenSolaris is a complete operating system that can be used to run a wide variety of applications, including web servers, database servers, and desktop computers. It is also a good choice for running Hadoop clusters, as it provides a number
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