Correct option is A
Tomatoes contain various acids such as oxalic acid, citric acid, malic acid, and ascorbic acid (vitamin C), but not formic acid.
Formic acid is found in some insects (like Ants) and is commonly used in the production of textiles and leather.
Citric acid - citrus fruits such as lemons, limes, oranges, etc.
Ascorbic acid - Citrus fruits, berries, green leafy vegetables, green peppers, and tomatoes all contain ascorbic acid, also known as Vitamin C.
Tartaric Acid - Grapes, tamarind, apples, apricots, and bananas
Malic acid – Apples contain a lot of it. Bananas, pomegranates, grapes, berries, tomatoes, and broccoli.