Which of the following correctly identifies the estimated digit in the measurement and the magnitude of uncertainty associated with it? a. 4.8901 x 105 estimated digit 1; uncertainty 10 b. 6.52 x 10-3 estimated digit 2; uncertainty 0.01 c. 2.6 x 10-3 estimated digit 1; uncertainty 0.0001 d. more than one correct response e. no correct response