Explanation:

Let's break down the options:

- Option 1: Ginger

- Ginger is not known for having a high malic acid content.

- It doesn't exhibit characteristics of tartness that are usual with malic acid.

- Option 2: Lemon

- Lemons are high in citric acid, not malic acid.

- They are famous for their sourness due to citric acid, not malic.

- Option 3: Apple

- Apples are known for containing malic acid abundantly.

- This acid contributes to their tart flavor and is why apple cider has a distinctive taste.

- Option 4: Tamarind

- Tamarind is rich in tartaric acid.

- Its sourness also comes from a mix of other acids, but not predominantly malic.