In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Salvador Dali (1)_______ a prominent Spanish surrealist painter (2)_________ in Figueres, Catalonia, on 11 May 1904. Dali's father was strict in the education of his children unlike (2)_____________ mother. Dali had a brother named Salvador (4)_____________ was born nine months before him and died of gastroenteritis. When he was five, Dali was taken to his brother's grave and was told that he was his brother's (5)___________.

Select the most appropriate option to fill in the blank No. 4.

who

Who' is a subject pronoun that is used to describe who performed an action or who is in a specific state. 'Whom' is an object pronoun that refers to the person who was the recipient of an action. 'Whose' is a possessive pronoun that refers to the person to whom something belongs.

Thus, the word appropriate for this blank is who.