Students in a psychology experiment were exposed to three notes of music for a very short period of time and then asked to recall them. if the instructions to recall the notes came immediately, the students usually succeeded. if the instructions came more than three seconds after the notes were played, the students were much less successful. the most plausible explanation for this phenomenon is that, in the latter case, .
a. the echo never made it to the sensory registers
b. the echo faded after being stored in short-term memory
c. the echo was already stored in long-term memory
d. the echo faded before being stored in short-term memory

d. the echo faded before being stored in short-term memory.

Explanation:

The MOST plausible explanation for this phenomenon is that, in the latter case, the echo faded before being stored in short-term memory. Memory is the function that allows human beings to store experiences and to recall them when they are needed. Memory has three stages: sensory memory, short-term memory, and long-term memory. Sensory memory stores memories less than a second after the stimulus has stopped. In this experiment as the instructions came more than three seconds after the stimulus had stopped the students could not store it in short-term memory.

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