Which Bootstrap class supports responsive text resizing?

The choice highlighting responsive text resizing is based on the Bootstrap framework's utility for typography, specifically the use of display classes. The class "display" in Bootstrap indicates a set of styles that dynamically adjust the sizing of text relative to the viewport. This allows for greater flexibility in making text responsive, meaning it can adapt to different screen sizes effectively.

The display classes in Bootstrap, such as "display-1," "display-2," etc., are specifically designed to provide larger font sizes that scale smoothly, enhancing readability and aesthetics across various devices, from mobile screens to desktops.

Other options do not correspond to Bootstrap's responsive text sizing methodology. For instance, a class specifically designed as "responsive-text" is not a standard Bootstrap class, nor does "text-responsive" and "text-wrap" offer responsive text resizing features. The latter, "text-wrap," is used primarily for controlling how text wraps within its container, rather than resizing text based on the viewport. Hence, the "display" class is the most suitable for achieving responsive text effects within Bootstrap.