Please select the eligibility criteria that correspond to the clinical trial below.
Title: WASH Benefits Kenya: A Cluster Randomized Controlled Trial of the Benefits of Sanitation, Water Quality, Handwashing, and Nutrition Interventions on Child Health and Development
Brief Summary: The purpose of this study is to measure the independent and combined effects of interventions that improve sanitation, water quality, handwashing, and nutrition on child health and development in the first years of life.


Options:
A: Inclusion Criteria:

* Signed informed consent from at least one guardian
* Age 5.50 months to 6.49 months
* Availability during the period of the study.
* Permanent resident of Lungwena Health Centre or Malindi Hospital catchment area

Exclusion Criteria:

* Existing or imminent severe stunting (HAZ \< -2.8)
* Weight for length (WFH) \< 80% of the reference median or presence of oedema
* Severe illness warranting hospital referral.
* History of allergy towards peanut
* History of anaphylaxis or serious allergic reaction to any substance, requiring emergency medical care
* Concurrent participation in any other clinical trial
B: Cross-sectional study (baseline and endline)

Inclusion Criteria:

* At least one index child 6-23 months of age in the household
* Mother should be living in the study area since the index child's delivery
* Singleton infants

Exclusion Criteria:

* Index child should not present congenital deformations that hamper anthropometric measurements

Longitudinal study

Inclusion Criteria:

* Child 6-6.9 months of age;
* Child with WHZ\>-2 and MUAC\>125 mm and no bilateral pitting edema
* Mother should be living in the study area since the index child's delivery
* Singleton infants

Exclusion Criteria:

* Congenital malformations that make anthropometric measurements impossible
* Mother planning to leave the study are in the coming year
C: Inclusion Criteria:

* WHZ \<-2 but \>-3 without bilateral pedal edema
* Reside within 7 kilometers of study site.

Exclusion Criteria:

* Not permanent resident in vicinity of study site.
* Severe chronic illness such as cerebral palsy.
* History of peanut allergy or anaphylaxis resulting from any food.
* Receiving other supplementary food or participating in other research.
D: Study Population Description:

The subject population will be young children and their mothers/guardians living in several contiguous districts of Western Province, in the rural areas outside the towns of Bungoma and Kakamega. Communities must meet the following criteria:

* Located in a rural area (defined as villages with \<25% residents living in rental houses, \<2 gas/petrol stations and \<10 shops)
* Not enrolled in ongoing WASH or nutrition programs
* No chlorine dispensers at water sources installed by programs separate from the present study
* Majority (\>80%) of households do not have access to piped water into the home
* At least six eligible pregnant women in the cluster at baseline.

From enrolled communities, household compounds will be enrolled if they meet the following criteria.

Inclusion Criteria:

1. One or more women who self-identify as pregnant at the time of the baseline survey
2. The woman plans to stay in the community for the next 12 months.

Exclusion Criteria:

(1) The study excludes households who do not own their home to help mitigate attrition during follow-up.

Answer: D