A banker is involved in occupation. The reward for land as a factor of production is

Here are the answers to your questions:

1. A banker is involved in ____ occupation.

A. commercial

A banker provides financial services, which are a key part of commercial activities, facilitating trade and business transactions.

The correct option is $\boxed{\mathbf{A}}$.

2. The reward for land as a factor of production is ____.

C. rent

In economics, the four factors of production are land, labor, capital, and entrepreneurship. The reward for land is rent, for labor is wages or salaries, for capital is interest, and for entrepreneurship is profit.

The correct option is $\boxed{\mathbf{C}}$.