  Although GRB 211211A is one of the closest gamma-ray bursts (GRBs), its
classification is challenging because of its partially inconclusive
electromagnetic signatures. In this paper, we investigate four different
astrophysical scenarios as possible progenitors for GRB~211211A: a binary
neutron-star merger, a black-hole--neutron-star merger, a core-collapse
supernova, and an r-process enriched core collapse of a rapidly rotating
massive star (a collapsar). We perform a large set of Bayesian multi-wavelength
analyses based on different models describing these scenarios and priors to
investigate which astrophysical scenarios and processes might be related to
GRB~211211A. Our analysis supports previous studies in which the presence of an
additional component, likely related to $r$-process nucleosynthesis, is
required to explain the observed light curves of GRB~211211A, as it can not
solely be explained as a GRB afterglow. Fixing the distance to about $350~\rm
Mpc$, namely the distance of the possible host galaxy SDSS J140910.47+275320.8,
we find a statistical preference for a binary neutron-star merger scenario.
