I am writing a letter to the head of my department stating that I want to pursue an optional course in Philosophy. In the letter, the departmental norm is to mention the "department" of my choice rather than the subject. So, I wrote the following sentence:
- I wish to do the optional course from the department of philosophy.
But, according to my friend, the preposition after course should be in. Hence, the sentence according to him would be:
- I wish to do the optional course in the department of philosophy.
I'd be grateful if you guys can help me out with this confusion, and also if you can point out some other grammatical inconsistencies in the above sentences.