The correct answer is Urinary Tract Infection. A Urinary Tract Infection is an infection that affects any part of the urinary system, including the kidneys, bladder, ureters, and urethra. It is commonly caused by bacteria entering the urinary tract through the urethra and can lead to symptoms such as frequent urination, burning sensation during urination, cloudy or bloody urine, and pelvic pain. Treatment usually involves antibiotics to clear the infection.