The correct response is B. Primary. According to Gordon Allport, personality traits can be categorized as:
cardinal traits - the most dominant and observable traits of an individual.
Central traits - the general qualities that shape a person's behaviors.
Secondary traits - less apparent traits that emerge in specific contexts or situations when needed.
The process involves the separation of sister chromatids.
c. bivalents. In the initial phase of meiosis, specifically during prophase, bivalents are created, which consist of a tetrad made up of two paired chromosomes and four chromatids—each chromosome originating from one parent. In contrast, mitosis does not involve the formation of bivalents, although chromatids, homologs, centromeres, and spindles are present in both processes.
From what I understand, I believe it is Thaliacea. This perspective comes from the fact that, unlike Appendicularia, Thaliacea possesses both a tail and a notochord during its adult phase.