Secondary sources
a provide firsthand testimony and direct evidence
b interpret and analyze primary or other secondary sources
c store original reflections and correspondence
d can only be found in personal collections and private libraries

Secondary sources interpret and analyze primary or other secondary sources.  Option B is correct.

Generally, secondary sources are those sources which describe or comment regarding a topic which was previously presented and mentioned in another source. In other words, secondary sources comment on primary sources, which are the original source of information.

Other choices provided above, describes primary sources.

in what passage i'm sorry but i don't see anything there.

if you have to come up with one i would do

love: happiness