During ________ this famous scientist found the ways of discovering the new chemical element

A．the later ’s

B．the late s

C．later ’s

D．late s

E) the later s    F) the latest s   G) later s    H) late ’s
I) the latest ’s   J) latest s       K) latest ’s   L) last s
M) last ’s      N) the last ’s    O) the last s