4. Toxoplasmosis.
| a. | is associated with an increased incidence of neural tube defect. | |
| b. | is associated with intra-cerebral calcification. | |
| c. | is associated with chorio-retinitis. | |
| d. | is associated with hydrocephalus. | |
| e. | is associated with duodenal atresia. | |
| f. | maternal infection is usually asymptomatic. | |
| g. | treatment of infection in pregnancy is with streptomycin. |