- AStatement I alone is sufficient but Statement II alone is not
- BBoth statements together are needed (neither alone is sufficient)
- CEither statement alone is sufficient
- DStatement II alone is sufficient but Statement I alone is not
Step-by-Step Solution
In I, 'book' appears in the first two phrases with 'na' common (and absent from the third), so book = na. In II, 'book' is common with 'na' shared. Either suffices.
Answer: C) Either statement alone is sufficient