Abbreviated Letters Alif Laam Meem, Ya Seen, Ha Meem, etc. are known as the Huroof__________?

Abbreviated Letters Alif Laam Meem, Ya Seen, Ha Meem, etc. are known as the Huroof__________?

A. Al-Shamsi
B. Al-Muqattaat
C. Al-Qamari
D. None of these