Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph. (

• A These ultrasonic waves are emitted from two transducers and shaped by 3D-printed structures called metasurfaces. (
• B When the two ultrasonic beams intersect, a local nonlinear interaction generates an audible sound wave, which is only heard at that specific point of intersection.(
• C Researchers have developed a method that uses two non-linear ultrasonic waves to create an audible sound only at a specific point in space.(
• D The metasurfaces allow the ultrasonic beams to bend around obstacles, such as human heads, and intersect at a specific target location.