Please select the eligibility criteria that correspond to the clinical trial below.
Title: HIV Infection and Breastfeeding: Interventions for Maternal and Infant Health
Brief Summary: This is a comparative clinical trial among HIV-infected women and their infants to determine:

1. the benefit of nutritional supplementation given to women during breastfeeding
2. the benefit and safety of antiretroviral (ARV) medications given either to infants or to their mothers to prevent HIV transmission during breastfeeding
3. the feasibility of exclusive breastfeeding followed by early, rapid breastfeeding cessation


Options:
A: Inclusion Criteria:

* All children resident in randomized villages 6-59 months

Exclusion Criteria:

* N/A
B: Inclusion Criteria:

Recruitment and primary eligibility criteria:

* Age \> 14 years.
* Ability to give informed assent or consent.
* Evidence of HIV infection, as documented by 2 positive ELISA antibody tests; or 1 positive ELISA, and 1 Western Blot; or 2 separate concurrent rapid tests.
* Currently pregnant (with a single or multiple fetuses).
* Gestation \< 30 weeks at referral from 'Call to Action' Program
* No serious current complications of pregnancy.
* Intention to breastfeed.
* Intention to deliver at the institution at which the study is based.
* Not previously enrolled in this study for an earlier pregnancy.
* Other than HIV, no active serious infection, such as tuberculosis or other potentially serious illnesses.
* No previous use of antiretrovirals including the HIVNET 012 regimen.
* Mother's CD4 count \> 250 cells/uL determined in the antenatal clinic.
* Mother's ALT \< 2.5 x ULN (upper limit of normal) determined in the antenatal clinic

Secondary eligibility criteria and treatment assignment:

* Mother who delivers outside of the institution at which the study is based must present with her infant to the study site within 36 hours of delivery.
* Mother accepts nevirapine and zidovudine+lamivudine 7-day regimen for herself and her infant.
* Infant birth weight \> 2000 g.
* No severe congenital malformations or other condition(s) not compatible with life.
* Based on clinical assessment, no maternal condition which would preclude the start of the study intervention.
C: Inclusion Criteria:

* WH≥80% of median of NCHS reference without bilateral pitting oedema;
* Age ≥ 6 months and ≤36 months;
* Member of a household with a dependency ratio \>4;
* Not planning to leave the study zone for the coming 5 months;

Exclusion Criteria:

* Not showing appetite;
* Age \< 6 months or age \> 36 months
* Weight-for-Height Z-score \<-2 and/or the presence of bilateral pitting oedema in children 6-36 months;
* Member of a household with a dependency ration ≤ 4;
* Clinical complications
* Presence of chronic illness, cardiac disease, congenital abnormalities, cancer;
* Being allergic to one of the ingredients of the RUF.
D: 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

Answer: B