Problem: CDO issuance grew from an estimated $20 billion in Q1 2004 to its peak of over $180 billion by Q1 2007, then declined back under $20 billion by Q1 2008. Further, the credit quality of CDO's declined from 2000 to 2007, as the level of subprime and other non-prime mortgage debt increased from 5% to 36% of CDO assets. As described in the section on subprime lending, the CDS and portfolio of CDS called synthetic CDO enabled a theoretically infinite amount to be wagered on the finite value of housing loans outstanding, provided that buyers and sellers of the derivatives could be found. For example, buying a CDS to insure a CDO ended up giving the seller the same risk as if they owned the CDO, when those CDO's became worthless.
When did the issuance of CDO peak?
The answer is the following: Q1 2007

Problem: Cultural depictions of dogs in art extend back thousands of years to when dogs were portrayed on the walls of caves. Representations of dogs became more elaborate as individual breeds evolved and the relationships between human and canine developed. Hunting scenes were popular in the Middle Ages and the Renaissance. Dogs were depicted to symbolize guidance, protection, loyalty, fidelity, faithfulness, watchfulness, and love.
As relationships between people and dogs got closer, what happened to the art that had dogs in it?
The answer is the following: became more elaborate

Problem: In 1899, the memorial, by the Berlin sculptor Ernst Gustav Herter (18461917), finally came to rest, although subject to repeated vandalism, in the Bronx, at 164th Street and the Grand Concourse, or Joyce Kilmer Park near today's Yankee Stadium. (In 1999, it was moved to 161st Street and the Concourse.) In 2007, Christopher Gray of The New York Times described it as "a writhing composition in white Tyrolean marble depicting Lorelei, the mythical German figure, surrounded by mermaids, dolphins and seashells."
What was Herter's career?
The answer is the following: sculptor

Problem: The painters of the early Renaissance used two traditional lake pigments, made from mixing dye with either chalk or alum, kermes lake, made from kermes insects, and madder lake, made from the rubia tinctorum plant. With the arrival of cochineal, they had a third, carmine, which made a very fine crimson, though it had a tendency to change color if not used carefully. It was used by almost all the great painters of the 15th and 16th centuries, including Rembrandt, Vermeer, Rubens, Anthony van Dyck, Diego Velazquez and Tintoretto. Later it was used by Thomas Gainsborough, Seurat and J.M.W. Turner.
What was kermes lake made from?
The answer is the following:
kermes insects