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: The p-nitrobenzoic acid is:
Options: <0> Less acid than benzoic acid. <1> Less acid than p-methoxybenzoic acid. <2> More acid than benzoic acid and with lower pKa. <3> More acid than benzoic acid and with higher pKa. <4> Less acid than p-methoxybenzoic acid and with lower pKa.
pharmacology

Question: Sulfamethoxazole is microencapsulated by complex coacervation using:
Options: <0> Gelatin and gum arabic. <1> Albumin and gum arabic. <2> Gelatine and sodium alginate. <3> Pectin and gelatin. <4> Gum arabic and pectin.
pharmacology

Question: In a quasi-experimental design:
Options: <0> There is no specific intervention by the researcher on the independent variable or treatment. <1> Spontaneous behavior is studied in natural situations. <2> It constitutes the maximum degree of intervention and internal control. <3> Study groups can not be organized by random assignment. <4> It represents the maximum degree of naturalness and the minimum internal control.
psychology