Which Python code creates a VRF in an ACI tenant using the Cobra SDK?

Which Python code creates a VRF in an ACI tenant using the Cobra SDK?
A . Vrf(fvTenant(uniMo, ‘CustA’), ‘CustA_VRF’)
B . Ctx(Tenant(uniMo, ‘CustA’), ‘CustA_VRF’)
C . Vrf(Tenant(uniMo, ‘CustA’), ‘CustA_VRF’)
D . Ctx(fvTenant(uniMo, ‘CustA’), ‘CustA_VRF’)

Answer: B