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Agricultural methods seems right

Explanation:

Since agricultural methods seems to make the most sense and since the passage is mainly talking about their farming methods it looks right to say that it's their agricultural methods

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1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

using the scientific method.