In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Question: Which of the following multivariate analysis techniques analyzes the covariation presented by a set of metric variables, susceptible of being synthesized in a set of common factors that lie behind them?
Options: <0> Multiple discriminant analysis. <1> Multiple linear regression <2> Multivariate analysis of variance. <3> Factorial analysis. <4> Analysis of structural equations.
psychology