Final answer:
The imagery in T.S. Eliot's lines includes olfactory imagery, through the 'smells of steak,' and visual imagery, with 'the burnt-out ends of smoky days,' making option (a) the accurate answer.
Step-by-step explanation:
The imagery in T.S. Eliot's lines from The Winter Evening Settles Down encompasses several sensory experiences. The phrase "smells of steak in passageways" triggers olfactory imagery, as it involves the sense of smell. The reader can almost detect the scent of steak wafting through the air.
The phrase "the burnt-out ends of smoky days" evokes visual imagery, with the description painting a picture of the remnants of a day marred by smoke and dimness. Moving on, "a gusty shower wraps the grimy scraps of withered leaves about your feet" features not only visual but also tactile imagery, as one can imagine the sensation of leaves brushing against the feet. Therefore, the correct answer is (a) Visual and olfactory imagery; 'smells of steak' and 'the burnt-out ends of smoky days.'