We can see that what the speaker observes in "London's Summer Morning" is: A busy morning in a London market.
Let's understand what "London's Summer Morning" is all about.
"London's Summer Morning" is actually known as a poem that written by Mary Robinson. In the poem, we can see that speaker is actually walking along the streets of London. The speaker was observing things.
We see then that the speaker observes that the London market is busy and noisy.
Thus, what the speaker observes in "London's Summer Morning" is a busy morning in a London market.
Learn more about poem on https://brainly.com/question/9861