Answer:
Because the two firms are just affiliates.
Step-by-step explanation:
Looking at the narration in this scenario , there exist an affiliated relationship between the two parties.
Affiliation in business is defined as a form of relationship that exist between two or more companies where a parent company attains control in the others by acquiring less than 50% of their shares
Based on this ,it will not be prohibited for the IAR to use securities owned in the advisory account to obtain a loan for his client as they are just affiliated to the parent company and