Answer:
The question is incomplete because the options are not given but the options are gotten from another website.
a. LMAN.
b. H VC.
C. R A.
d. Hippocampus
Step-by-step explanation:
It is LMAN leison because lateral magnocellular nucleus of the anterior nidopallium (LMAN) function in producing modulatory during song development in song birds .
Lesion means damage in organ or tissue that function
A damage in the organ or tissue of LMAN cause difficult in song learning development in song birds because the LMAN will not be able to perform it's function due to those damages and there is less song variability.