Step 1: Analyzing the sentence part-by-part:
"The boat was overloaded" --- Correct usage.
"with the passengers" --- Correct usage.
"and as a result it got drowned" --- Incorrect.
Step 2: Understanding the error: Boats do not "drown"; they "sink." The verb "drown" is used for living beings (like people or animals), not for objects.
Hence, the correct phrase should be "it sank" instead of "it got drowned." Thus, the error is in part C.
Which of the following is an octal number equal to decimal number \((896)_{10}\)?