Select all that apply.What is First Input Delay?

First Input Delay(FID)is indeed a measure of interactivity.It quantifies the responsiveness of a webpage by measuring the delay between when a user interacts with an element(such as clicking a button or tapping on a link)andwhenthe browser responds to that interaction.FID is a crucial metric for assessing user experience,as it reflects the time it takes for the page to become interactive and responsive to user input.Additionally,FID is indeed a Core Web Vital,which area set of specific metrics identified by Google as key indicators of a webpage's user experience.Core Web Vitals,including FID,are essential for evaluating and improving the overall performance and usability of a website.FID is distinct from Time to Interactive,which measures the time it takes for a webpage to become fully interactive,including both loading and interactivity delays.WhileFID focuses specifically on interactivity,Time to Interactive encompasses broader aspects of page loading and interaction readiness. Therefore,selecting A measure of interactivity and A Core Web Vital accurately reflects the significance of FID in assessing user experience and its inclusion among the key performance metrics emphasized by Google.