Final answer:
Thrush is an infection of the mouth caused by an overgrowth of Candida yeast, commonly Candida albicans. It's most prevalent in infants, people with compromised immune systems, or those with AIDS. Option B.
Step-by-step explanation:
The diagnostic term Thrush is usually a fungus infection of the b) Mouth. This condition is known as oral thrush and is caused by an overgrowth of the yeast Candida, especially Candida albicans.
It often appears as white patches inside the mouth and is most common in infants, immunodeficient patients, and those with AIDS due to their weakened immune systems or less developed normal microbiota which normally keeps Candida growth in check.
Other forms of candidiasis, the infection caused by Candida spp., include cutaneous candidiasis affecting the skin and nails, vaginal yeast infections, and in rare cases, systemic mycoses where the infection spreads to internal organs.
Cutaneous candidiasis can present as red, itchy rashes on the skin while infections of the nails can lead to yellow, brittle nails prone to breaking.
Systemic mycoses, such as coccidioidomycosis and histoplasmosis, typically enter the body through the respiratory system and can cause pulmonary infections and other serious health issues.
Hence, the right answer is option B.