1. The adverb that modifies the verb is c) ever. Without it, it wouldn't be completely clear as to which time frame the speaker refers to. It may have been for example the last year, or in some other particular moment.
2. The adverb that modifies the verb is b) always. It adds to the sense of urgency of wearing a life jacket when rafting. Without it, the meaning of this sentence wouldn't be so precise.
Answer: Historical institutionalism is the hardest of the three streams to define because it includes so many different scholars and so many different methodological approaches. It is based on the assumption that institutional rules, constraints, and the responses to them over the long term guide the behaviour of political actors during the policy-making process. Historical institutionalism mixes the quantitative analysis of the rational choice stream with the idea- and culture-based thought of the sociological stream. It includes an eclectic group of scholars with a wide variety of research agendas.
Hope this helps you and is correct!!
The correct answer should be<span> A. remember your topic and stay focused.
If you're not focused and you don't keep the topic in your mind you might wander off and get some info that is not relevant for your topic. </span>