Ihave a new hobby.
i keep track of all the wild birds i spot.
which sentence uses parenthetical elements most effectively to combine the information in the sentences?
i have a new hobby, which is keeping track of all the wild birds i spot.
i have a (new) hobby, which is keeping track—of all the (wild) birds i spot.
i have a new hobby, keeping track—of all the wild birds i spot.
i have a new hobby—keeping track—of all the (wild) birds (i spot).

the answer is:

b) to show the progression of inventions that took place in the bicycling industry.

hope it !

explanation:

the silver bells of the sleds are merry and keep time in the winter nights while the sky twinkles happily. the golden bells of weddings are delightful in their peaceful happiness, foretelling a rapturous future. meanwhile, the brazen alarm bells scream frightfully in the night, with a discordant and desperate sound. in their clamor, these bells convey terror, horror, and anger. finally, the iron bells are solemn and melancholy, while those in the church steeple are like ghouls who feel happiness. the king of the ghouls, who rings the bells, cheerfully keeps time with the moaning and groaning bells.