Answer
`<strong>` gives text strong importance; `<b>` only draws attention without extra importance. • Browsers usually make both bold. • Screen readers may announce strong text differently. • Choose the option whose defined semantics and behavior match the task.
💡 Simple Example
<strong>Warning:</strong> Hot surface. <b>New!</b>
⚡ Quick Revision
strong adds importance; b mainly changes attention or appearance.