Which of the following is a valid HTML5 ad size?

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Multiple Choice

Which of the following is a valid HTML5 ad size?

In HTML5 ads, you use sizes that match standard display ad dimensions defined by industry guidelines (IAB). These sizes ensure ads render correctly across sites and devices. Among the options, 320x50 is a widely used IAB banner size, especially for mobile placements, so it’s a valid HTML5 ad size. The other options don’t correspond to common display ad dimensions: 100x100 is not a standard banner unit, 1024x1024 is a square image not used for banners, and 600x300 isn’t a recognized standard IAB size (though 300x600 is a standard tall banner).

In HTML5 ads, you use sizes that match standard display ad dimensions defined by industry guidelines (IAB). These sizes ensure ads render correctly across sites and devices. Among the options, 320x50 is a widely used IAB banner size, especially for mobile placements, so it’s a valid HTML5 ad size. The other options don’t correspond to common display ad dimensions: 100x100 is not a standard banner unit, 1024x1024 is a square image not used for banners, and 600x300 isn’t a recognized standard IAB size (though 300x600 is a standard tall banner).

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