Choose the correct logical sequence [which step would have followed which] of the steps employed by the UCL researchers. i. Analysed samples to find the number of insect populations and biodiversity in those sites over the course of the last 20 years and found average and maximum temperatures in those sites over the course of the last 20 years. ii. Collected samples from selected sites over the last 20 years. iii. Compared changes over time in the insect populations and biodiversity in each site to the average and maximum temperatures as well as to the rubric of land use at each site to draw conclusions. iv. Categorised the use of land at those sites under three rubrics, namely, as having primary vegetation, low-intensity agriculture, or high-intensity agriculture.