Loan from shareholder being company having a common director

Dear Experts kindly help me out of the below mentioned query.

One Private Limited Company (Say A) is having a shareholder being a NBFC Pvt Ltd Company (Say B). A and B is also having a common director (Say C). C is having shareholding in A which is less than 20% but in B greater than 20%. Now my query is whether A can take loan from B and Vice Versa?

Thanks in advance.