Which of the Following Is(are)NOT True for Ionization Interference

Which of the following is(are) NOT true for ionization interference?
I Ionization interference can occur with alkali metals at relatively low temperature and for analyses for other elements at higher temperature.
II Ionization suppressors decrease the extent of ionization of analyte.
III Ionization suppressors are more easily ionized than the analyte,the large number of electrons produced prevent ionization of the analyte.
IV Ionization interference occurs when a component of the sample prevents ionization of the sample.

A) IV
B) II
C) I and II
D) III
E) III and IV