which formula represents the compound commonly known as phosphine with iupac name phosphorus trihydride?\no…

which formula represents the compound commonly known as phosphine with iupac name phosphorus trihydride?\no ph\no ph2\no ph3\no ph4
Answer
Brief Explanations:
The IUPAC name phosphorus trihydride indicates one phosphorus (P) atom and three hydrogen (H) atoms. In chemical - naming, "tri -" means three. So the formula is $PH_3$.
Answer:
C. $PH_3$