Final answer:
The value assigned to b1 is true based on the statement provided in the programming context. No other actions are indicated to suggest a change to the variable after it is assigned.
Step-by-step explanation:
The value assigned to b1 is true. The statement boolean b1 = true is in a programming context and it clearly indicates that the boolean variable b1 is being assigned the value true. In programming, particularly in languages like Java, a boolean variable can only hold two values: true or false. The assignment operator (=) in the statement sets the variable on the left (b1) to the value on the right (true), meaning b1 will hold the value true after this statement is executed.
To answer the question directly: The value assigned to b1 is option b. True. When a variable is declared with a certain value, it takes that value unless it is changed later in the program. In this case, since we are only given the declaration and assignment statement, we can confidently state that b1 is true.