In “your laughter,” the symbol of the blue flower expresses the speaker’s

Longing for his homeland.

Explanation:

"Your Laughter" is a poem written by Pablo Neruda, published in 1972, in his late years.

In this poem, Neruda can reflect on the struggles of his life. Neruda lost his mother when he was only two months of age, faced the death of his first child, and also two divorces. He lived in exile also.

In his poem, he is reflecting on all of his struggles. But for him, the thing that kept him going was the laughter of his lover.

In the fifth stanza of the poem, the poet uses the symbolism of 'blue flower' for the laughter of his lover. Tecophilaea Cyanocrocus is the blue flower that the poet is talking about which is the native flower of Chile, Neruda's homeland.  

"I want your laughter like

the flower I was waiting for,

the blue flower, the rose

of my echoing country." (Quoted text from, "Your Laughter, Pablo Neruda).

So, the symbol of the blue flower that's been expressed by Neruda in the poem is his longing for his homeland.

the answer is a.

explanation:

the clause "looking toward the south" modifies "a funnel cloud." it's not really the cloud that's "looking," but grammatically, that clause is modifying the cloud.