Read the following context and choose the best option to answer the question.
Context: Claims to have been speaking English for three years but to be honest guys and gals it 's not going well . I have started doing that thing that Brits do when abroad where they shout and use their hands a lot to make Johnny Foreigner understand ... and while I regard myself as a reasonably patient chap it gets a tad infuriating when you have to repeat yourself five or six times and he looks at you each time with disgust and contempt in his eyes as if it 's my fault he ca n't understand me . I was never a big fan of charades . My flatmates are a lot less patient than me .
Question: What is causing tension between the flatmates ?
Options: 
A. A lack of patience .
B. A lack of kindness .
C. A lack of common language .
D. None of the above choices .


C