The correct answer is B. Observation (stage 1)
Step-by-step explanation:
The scientific method refers to a research approach that allows researchers to understand a phenomenon in almost any field or discipline. In this, the first stage is the observation this stage is about noticing and observing a phenomenon, event, situation that catches the attention of the researcher, also in this the research might decide the topic or aspect he/she ants to research and the main question. This stage is the one that was completed in the scenario presented because you noticed and observed a phenomenon (farms with different types of crops) and based on this you want to solve a question and research in a specific factor.