Observation is made either through qualitative or quantitative way. Using the five senses to be able to collect data is a research method using qualitative observation. It is based on the sensory organs of the researcher and considered as a subjective method of collecting data. Using numerical and statistical parameter in collecting data for a research is a quantitative observation. It is associated with the use of values that can be counted.
An outcome that proves a hypothesis is wrong is referred to as a failed hypothesis.
Answer - Option D. The appearance of something stated in descriptive words
