Service variability means that the quality of services does not depend on who provides them

A relationship that determines the sequence for undertaking activities is a precedence relationship

Indicate whether the statement is true or false

(I) The average lifetime of a debt security's stream of payments is called duration

(II) The duration of a portfolio is the weighted average of the durations of the individual securities, with the weights reflecting the proportion of the portfolio invested in each. A) (I) is true, (II) false. B) (I) is false, (II) true. C) Both are true. D) Both are false.