b. to form the possessive of most singular nouns, add just an apostrophe.
c. to form the possessive of plurals that do not end in s, add an apostrophe and s.
d. do not use apostrophes to form the possessive of most nouns.
B is for bulling
Y is for youth
S is for speak up
T is for terrible
A is for action
N is for nothing
D is for don't stand by
E is for everyone
R is for relishing the problem
a minor earthquake
B.
the evolution of bacteria
C.
a global mass extinction
D.
one volcanic eruption
Answer is c
hope it helps!