Given the following relations on the set of all people. Check ALL correct answers from the following lists: (a) a is older than b
A. antisymmetric
B. irreflexive
C. transitive
D. reflexive
E. symmetric
(b) a and b have a common grandparent
A. reflexive
B. symmetric
C. irreflexive
D. transitive
E. antisymmetric
(c) a has the same first name as b
A. reflexive
B. irreflexive
C. transitive
D. symmetric
E. antisymmetric
(d) a and b were born on the same day
A. symmetric
B. reflexive
C. transitive
D. antisymmetric
E. irreflexive

Can someone me i’m confused. will give brainliest and a whole bunch of points

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?