Explanation
$$\textbf{Correct answer: B}$$
$$\textbf{Option (A):}$$
$$\bullet$$ Generally, the urine is tasteless and concentrated. This is because most of the glucose that enters the nephron is reabsorbed along with water which makes it concentrated.
$$\textbf{Option (B):}$$
$$\bullet$$ If a person suffers from Diabetes insipidus, then they have more loss of water.
$$\bullet$$ Reabsorption does not occur in a normal manner which is why the urine is diluted and tasteless.
$$\textbf{Option (C):}$$
$$\bullet$$ If a person suffers from Diabetes mellitus, there is the presence of sugar in urine even though the water reabsorption is normal.
$$\bullet$$ This is why the urine will be thick and sweet.
$$\textbf{Option (D):}$$
$$\bullet$$ If reabsorption of both glucose and water does not occur normally, the urine turns sweet and dilutes.
$$\bullet$$ Such a condition does not occur in diabetes insipidus.
Hence, the correct answer is option (B).
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