|Question 5Verbal

Source Texts

Text
Sociologist Alton Okinaka sits on the review board tasked with adding new sites to the Hawaii Register of Historic Places, which includes the Pufu'opae Bridge, built in 1915, and the Ma'alaea General Store, built in 1910. Okinaka doesn't make such decisions single-handedly, ____ historical designations must be approved by a group of nine other experts.
Which choice completes the text so that it conforms to the conventions of Standard English?
however, all
A
however and all
B
however all
C
however. All
D