This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
A pregnant lady had no complaints but mild cervical lymphadenopathy in first trimester. She was prescribed spiramycin but she was noncompliant. Baby was born with hydrocephalus and intracerebral calcification. Which of these is likely cause ? 
Select and explain. 
A. Rubella, B. Toxoplasmosis, C. CMV, D. Herpes
B: Toxoplasmosis
Answer: B: Toxoplasmosis 
Explanation: Hydrocephalus and intracerebral calcification can occur in all the four options either commonly (Toxoplasma, CIVIV) or uncommonly (HSV, rubella). See previous explanation.
However, spiramycin in pregnancy is given for toxoplasmosis.
Acute maternal toxoplasmosis is usually asymptomatic, some patients may present with posterior cervical lymphadenopathy, fatigue, lassitude and maculopapular rash.
Spiramycin reduces the risk of congenital infection in acute toxoplasmosis during pregnancy.
As the patient was not compliant with spiramycin, baby developed congenital toxoplasmosis.