Answer:
A) Diabetes insipidus
Explanation:
Diabetes insipidus is an abnormal condition caused when the kidney fails to concentrate the urine as a result of which the dilute urine is excreted out of the body.
In diabetes insipidus, the glucose level of the blood remains normal but the frequent urination and constant thirst are observed.
In the given question, since the patient urinates diluted urine and feels very thirsty therefore the client must be tested for the diabetes insipidus.
Thus, Diabetes insipidus is the correct answer.