One option a member of congress can follow for how to cast a vote is as or person who has been given power to act for others.

One option a member of Congress can follow for how to cast a vote is as "trustee", or person who has been given power to act for others.

A trustee is a man or firm that holds and manages property or resources to help an outsider. A trustee might be designated for a wide assortment of purposes, for example, on account of chapter 11, for a philanthropy, for a trust subsidize or for specific sorts of retirement designs or benefits. Trustees are trusted to settle on choices in the recipient's best advantages and regularly have a guardian obligation to the trust recipients.  

The most critical part of a trustee's obligations is its guardian character. A trustee is legitimately and ethically bound to deal with the trust property in a mindful and profitable way, and is under a flat out commitment to act exclusively to help the trust's recipients.

d.) continue to rise rapidly

the correct answer is d