Which lines from mark antony's speech in julius caesar use logos?

a. my heart is in the coffin there with caesar, / and i must pause till it come back to me.

b. you all did love him once, not without cause: / what cause withholds you then, to mourn for him?

c. when that the poor have cried, caesar hath wept: / ambition should be made of sterner stuff.

d. i speak not to disprove what brutus spoke, / but here i am to speak what i know.