Fill in the blanks with the correct alternatives from the choices given below them.    Bread and butter ______ my usual breakfast. 

Explanation:   Is (correct verb): In this context, "bread and butter" is treated as a singular entity, and the verb should agree with the singular form. Therefore, "is" is the correct choice.   Options:   (a) Is: This is the correct singular form of the verb, agreeing with the singular subject "bread and butter." (b) Are: This is the plural form of the verb and does not agree with the singular subject in this context. (c) Were: This is the past tense form and is not suitable for describing a habitual or usual action in the present. (d) Have: This is also not appropriate for describing a usual breakfast in this context.