the ArrayField error :Abstract models cannot be instantiated

[weijchun]

class Option(models.Model):
"""
"""
lr = models.CharField()

class Meta:
    abstract = True

def __str__(self):
    return self.lr

class StudentsModel(models.Model):
"""
"""
name = models.CharField('name',default='',max_length=10)
lrs = models.ArrayField(model_container=Option,blank=True)

class Meta:
    db_table = "cblue_students"

def __str__(self):
    return self.name

required:
python3.9.19
django4.1.13
djongo1.3.6
pymongo3.12.1
mongodb6.0.16