This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: In September 1828 Chopin, while still a student, visited Berlin with a family friend, zoologist Feliks Jarocki, enjoying operas directed by Gaspare Spontini and attending concerts by Carl Friedrich Zelter, Felix Mendelssohn and other celebrities. On an 1829 return trip to Berlin, he was a guest of Prince Antoni Radziwiłł, governor of the Grand Duchy of Posen—himself an accomplished composer and aspiring cellist. For the prince and his pianist daughter Wanda, he composed his Introduction and Polonaise brillante in C major for cello and piano, Op. 3. Question: What piece did Frédéric create specifically for the prince and the prince's daughter, Wanda?
Introduction and Polonaise brillante in C major for cello and piano, Op. 3

Passage: Morality plays emerged as a distinct dramatic form around 1400 and flourished until 1550. The most interesting morality play is The Castle of Perseverance which depicts mankind's progress from birth to death. However, the most famous morality play and perhaps best known medieval drama is Everyman. Everyman receives Death's summons, struggles to escape and finally resigns himself to necessity. Along the way, he is deserted by Kindred, Goods, and Fellowship - only Good Deeds goes with him to the grave. Question: What is the most famous morality play from the medieval period?
Everyman

Passage: Caesar was now the primary figure of the Roman state, enforcing and entrenching his powers. His enemies feared that he had ambitions to become an autocratic ruler. Arguing that the Roman Republic was in danger, a group of senators hatched a conspiracy and assassinated Caesar at a meeting of the Senate in March 44 BC.  Mark Antony, Caesar's lieutenant, condemned Caesar's assassination, and war broke out between the two factions. Antony was denounced as a public enemy, and Caesar's adopted son and chosen heir, Gaius Octavianus, was entrusted with the command of the war against him. At the Battle of Mutina Mark Antony was defeated by the consuls Hirtius and Pansa, who were both killed. Question: When did Julius Caesar die?

March 44 BC