In which sentence is the singular possessive of robin formed correctly?
AYesterday morning a robins eggs were in that nest.
BYesterday morning a robin’s eggs were in that nest.
CYesterday morning a robins' eggs were in that nest.
DYesterday morning a robins's eggs were in that nest.
AYesterday morning a robins eggs were in that nest.
BYesterday morning a robin’s eggs were in that nest.
CYesterday morning a robins' eggs were in that nest.
DYesterday morning a robins's eggs were in that nest.