Þ B. THE INSTR FUNCTION RETURNS THE POSITION THAT THE NTH OCCURRENC...

3. þ B. The INSTR function returns the position that the nth occurrence

of the search string may be found after starting the search from a given

start position. The search string is the underscore character, and the third

occurrence of this character starting from position 5 in the source string

occurs at position 14.

ý A, C, and D. Since position 4 is the first occurrence of the search string

and position 12 is the third occurrence if the search began at position 1.