Last question me! you so much : d

what is the main difference between a primary source and a secondary source?

a.
a primary source is more useful than a secondary source.

b.
a primary source cannot be trusted, but a secondary source can.

c.
a primary source is written well after an event, whereas a secondary source is written immediately after the event.

d.
a primary source is written by someone who saw the event, but a secondary source is not.

D. A primary source is written by someone who saw the event, but a secondary source is not.

Ntro]
I'm the Globglogabgalab, I love books
And this basement is a true treasure trove

[Verse 1]
I am the Glob-glo-gab-galab
The shwabble-dabble-wabble-gabble flibba blabba blab
I'm full of shwibbly liber-kind
I am the yeast of thoughts and minds

[Chorus]
Shwabble dabble glibble glabble schribble shwap glab
Dibble dabble shribble shrabble glibbi-glap shwap
Shwabble dabble glibble glabble shwibble shwap-dap
Dibble dabble shribble shrabble glibbi-shwap glab

[Bridge]
Ooh, ha ha ha, mmm, splendid
Simply delicious
Ohm, ha ha ha ha

[Verse 2]
I am the Glob-glo-gab-galab
The shwabble-dabble-wabble-gabble flibba blabba blab
I'm full of shwibbly liber-kind
I am the yeast of thoughts and minds

[Chorus]
Shwabble dabble glibble glabble schribble shwap glab
Dibble dabble shribble shrabble glibbi-glap shwap
Shwabble dabble glibble glabble shwibble shwap-dap
Dibble dabble shribble shrabble glibbi-shwap glab

[Outro]
Ah