Who among the following praised Chaucer’s translation of Roman de la rose?

The correct answer is Eustache Deschamps.

Detailed Explanation:

1. Chaucer's Translation: Geoffrey Chaucer translated the highly influential 13th-century French allegorical poem Roman de la Rose into Middle English, known as The Romaunt of the Rose.
2. Eustache Deschamps' Tribute: Eustache Deschamps was a prominent medieval French poet and a contemporary of Chaucer. He sent Chaucer a complimentary ballade (often referred by its opening line, "O Socrates plains de philosophie") in which he celebrated Chaucer's literary achievements. In this poem, Deschamps famously praised Chaucer as a "grant translateur" (great translator) and specifically lauded his work in translating the Roman de la Rose, which helped introduce French courtly literature to the English-speaking world.

Why the other options are incorrect:
- Guillaume de Lorris and Jean de Meun were the original French authors of the Roman de la Rose (Lorris wrote the first part, and Meun completed it decades later). They did not praise Chaucer's translation.
- Boccaccio was a celebrated Italian poet whose works (such as Il Filostrato and Teseida) served as major source materials for Chaucer's own writings (like Troilus and Criseyde and The Knight's Tale), but he did not write praise for Chaucer's translation of the French poem.