Question:
Which team did Manuel Hartmann play for in Apr, 2011?

Context:
 Manuel Hartmann plays for FC Ingolstadt 04 from Jan, 2010 to Jan, 2012. 
 Manuel Hartmann plays for SGV Freiberg from Jan, 2003 to Jan, 2005. 
 Manuel Hartmann plays for TSV Schilksee from Jan, 2016 to Dec, 2022. 
 Manuel Hartmann plays for Stuttgarter Kickers from Jan, 2005 to Jan, 2007. 
 Manuel Hartmann plays for TuS Koblenz from Jan, 2007 to Jan, 2010.

Answer:
FC Ingolstadt 04