Which One of These Statements About Strong Acids Is True

Multiple Choice

Which one of these statements about strong acids is true

A) All strong acids have H atoms bonded to electronegative oxygen atoms.
B) Strong acids are 100% ionized in water.
C) The conjugate base of a strong acid is itself a strong base.
D) Strong acids are very concentrated acids.
E) Strong acids produce solutions with a higher pH than weak acids.