In "the red-headed league," why does sherlock holmes beat upon the pavement outside of jabez wilson's office?

a.
he wants to find out how strong his walking stick is in case he needs to protect himself.

b.
he wants to find out where john clay is hiding in saxe-coburg square.

c.
he wants to find out if the ground under the pavement has been dug out.

d.
he wants to find out whether wilson can hear him inside the office.

What did the leaders of the soviet union feel would provide the most protection for their country

Which best describes the“brain trust” franklin roosevelt promised to make part of his administration? a group of america’s most successful businessmen, who would fix the economya group of hoover’s economic advisers, who would undo previous damage to the economya group of smart advisers, who would assist roosevelt in guiding the nation forwarda group of military veterans, who would assist roosevelt in putting americans back to work

An refers to a specific factor that has a range of possible values