Assertion:
If no VALUE attribute is supplied for an OPTION element, the displayed content of the OPTION is submitted to the form processing script. Otherwise, the VALUE attribute is sent.

SELECT list with option elements. Option elements only having text content, not VALUE attribute. Second option selected:
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SELECT list with option elements. Option elements only having VALUE attribute, text content is empty. Second option selected:
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SELECT list with option elements. Option elements having both VALUE attribute and text content. Second option selected:
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