White Houses by Vanessa Carlton

Crashed on the floor when I moved in
This little bungalow with some strange new friends
Stay up too late, and I'm too thin
We promise each other it's 'til the end
Now we're spinning empty bottles
It's the five of us
With pretty eyed boys girls die to trust
I can't resist the day
No, I can't resist the day
Jenny screams out and it's no pose
'Cause when she dances she goes and goes
Beer through the nose on an inside joke
And I'm so excited,
I haven't spoken
And she's so pretty, and she's so sure
Maybe I'm more clever than a girl like her
Summer's all in bloom
Summer is ending soon
It's alright and it's nice not to be so alone
But I hold on to your secrets in white houses
Maybe I'm a little bit over my head
I come undone at the things he said
And he's so funny in his bright red shirt
We were all in love and we all got hurt
I sneak into his car's cracked leather seat
The smell of gasoline in the summer heat
Boy, we're going way too fast
It's all too sweet to last
It's alrightAnd I put myself in his hands
But I hold on to your secrets in white houses
Love, or something ignites in my veins
And I pray it never fades in white houses
My first time, hard to explain
Rush of blood, oh, and a little bit of pain
On a cloudy day, it's more common than you think
He's my first mistake
Maybe you were all faster than me
We gave each other up so easily
These silly little wounds will never mend
I feel so far from where I've been
So I go, and I will not be back here again
I'm gone as the day is fading on white houses
I lied, wrote my injuries all in the dust
In my heart is the five of us
In white houses
And you, maybe you'll remember me
What I gave is yours to keep
In white houses

In this passage, "white houses" is a metaphor for her:
a)virginity
b)hometown
c)social class
d)occupation