The diagram shows a training drill where an athlete spends 30 seconds at each station and rests between each station - HSC - SSCE Personal Development and Physical Education - Question 9 - 2018 - Paper 1

In this scenario, the athlete is engaged in a training drill where they spend specific amounts of time at each station. The important aspect here is that the athlete rests between each station. This setup is characteristic of the 'distributed practice' method. Distributed practice involves spreading out the learning sessions with intervals of rest or breaks in between, facilitating better retention and performance. Therefore, the correct answer is A. Distributed.