Given the question: Information: - Lucius Salvius Otho Titianus was the elder brother of the Roman Emperor Otho ( reigned 69 ) , and consul of Rome in 52 AD . He was married to Cocceia , the sister of the future Roman Emperor Marcus Cocceius Nerva ( reigned 96 -- 98 ) , with whom he had a son , Lucius Salvius Otho Cocceianus . Cocceianus rose to become consul in 82 , but was later executed under orders of Emperor Domitian , for having observed his uncle Otho 's birthday . - The Roman emperor was the ruler of the Roman Empire during the imperial period (starting in 27 BC). The emperors used a variety of different titles throughout history. Often when a given Roman is described as becoming "emperor" in English, it reflects his taking of the title "Augustus" or "Caesar". Another title often used was "imperator", originally a military honorific. Early Emperors also used the title "princeps" (first citizen). Emperors frequently amassed republican titles, notably "Princeps Senatus", "Consul" and "Pontifex Maximus". - Otho (28 April 32 16 April 69) was Roman Emperor for three months, from 15 January to 16 April 69. He was the second emperor of the Year of the Four Emperors. - The Year of the Four Emperors was a year in the history of the Roman Empire, AD 69, in which four emperors ruled in succession: Galba, Otho, Vitellius, and Vespasian. What object entity has the relation of 'date of birth' with the subject 'titianus'? Choices: - 27 - 28 - 32 - 69
The answer is:
32