Question no 1146 : Quota Arrangement calculation

In SAP MM and PP, assume the following data and determine the source determination ?

Material master is assigned with Lot Sizing "EX".
Quota for Vendor A : 2, Allocated Qty : 100, Quota-Based Qty : 0
Quota for Vendor B : 1, Allocated Qty : 200, Quota-Based Qty : 0
Quota for Vendor C : 3 , Allocated Qty: 500, Quota-Based Qty : 1000

There is a new requirement of 400,
what is the correct source determination ?

A)    Vendor A
B)     Vendor B
C)     Vendor C
D)     Quantity is split between Vendor A, B, C
E)     Quantity is split between Vendor A and B.
.