Which one of the following reflects back more sunlight as compared to other three?

Albedo is the fraction of incoming solar radiation reflected by a surface. Snow-covered land has the highest albedo of common terrestrial surfaces: fresh snow can reflect roughly 70–90% of incoming sunlight, making it much more reflective than other land covers [1]. Comparative measurements show fresh snow around ~85% albedo, desert sand about ~40%, and vegetated surfaces (such as paddy fields or prairie grassland) substantially lower, typically near ~20–30% [2]. Therefore, among the given choices, land covered with fresh snow reflects back the most sunlight, followed by desert sand and then vegetated lands like paddy or prairie.

Sources

1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 21: Horizontal Distribution of Temperature > Albedo > p. 283
2. [2] https://srm360.org/infographic/albedo/