Based on the premise "Besides, by going to-night we have the chance of capturing that great man and super-criminal Mr. Brown! There was dead silence, and Sir James continued: "You have been followed here not a doubt of it.", can we conclude the hypothesis "If we go tonight, we could catch Mr. Brown." is true (see options)?

Pick from:
a). yes;
b). it is not possible to tell;
c). no;
a).