Which of the following is a common file type used for inserting images with HTML?

The correct answer is A. JPEG.

JPEG (Joint Photographic Experts Group) is a widely used image format for digital photos and is commonly used in HTML for inserting images due to its efficient compression and good balance between image quality and file size. GIF (B) is also common for simple graphics and animations, but JPEG is more prevalent for photographs. TIFF (C) and RAW (D) are typically used for high-quality images in professional settings but are less suitable for web use.

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