Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Zinc and Biobehavioral Development in Early Childhood
Brief Summary: Zinc is necessary for growth and development, including the central nervous system, and zinc deficiency which is common in resource-poor settings, may adversely affect social, behavorial, cognitive and sensorimotor development. The project, located in Lima Peru, utilizes an experimental model in which children receive 10 mg supplemental zinc (or not) daily along with 10 mg iron and 1/2 mg copper from 6 months of age to 18 months of age. Beginning at 6 months of age, and at 9, 12, and 18 months, children are evaluated in multiples aspects of development. Children are also followed for their diet, growth, and health status. We hypothesize that children in this setting in which the diet is low in zinc who receive supplemental zinc will have better information processing skills, sensorimotor and behavioral development than their counterparts who do not receive supplemental zinc.


Options:
A: Arm Label: Active; Type: EXPERIMENTAL; Interventions: Dietary Supplement: 10 mg zinc oxide | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Other: Placebo | Intervention Type: DIETARY_SUPPLEMENT; Name: 10 mg zinc oxide; Assigned to Arm(s): Active | Intervention Type: OTHER; Name: Placebo; Assigned to Arm(s): Placebo
B: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Dietary Supplement: zinc | Arm Label: 2; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: iron + copper | Intervention Type: DIETARY_SUPPLEMENT; Name: zinc; Assigned to Arm(s): 1 | Intervention Type: DIETARY_SUPPLEMENT; Name: iron + copper; Assigned to Arm(s): 2
C: Arm Label: Zinc fortified group; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Zinc fortified food, Other: Placebo supplement | Arm Label: Non-fortified group; Type: PLACEBO_COMPARATOR; Interventions: Other: Placebo supplement, Dietary Supplement: Non-fortified food | Arm Label: Zinc supplement group; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Zinc supplement, Dietary Supplement: Non-fortified food | Intervention Type: DIETARY_SUPPLEMENT; Name: Zinc fortified food; Assigned to Arm(s): Zinc fortified group | Intervention Type: DIETARY_SUPPLEMENT; Name: Zinc supplement; Assigned to Arm(s): Zinc supplement group | Intervention Type: OTHER; Name: Placebo supplement; Assigned to Arm(s): Non-fortified group, Zinc fortified group | Intervention Type: DIETARY_SUPPLEMENT; Name: Non-fortified food; Assigned to Arm(s): Non-fortified group, Zinc supplement group
D: Arm Label: Zinc syrup; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Liquid zinc syrup | Arm Label: Zinc tablet; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Zinc tablet | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Dietary Supplement: Liquid placebo supplement | Intervention Type: DIETARY_SUPPLEMENT; Name: Liquid zinc syrup; Assigned to Arm(s): Zinc syrup | Intervention Type: DIETARY_SUPPLEMENT; Name: Zinc tablet; Assigned to Arm(s): Zinc tablet | Intervention Type: DIETARY_SUPPLEMENT; Name: Liquid placebo supplement; Assigned to Arm(s): Placebo

Answer: B