Question: What position did Lamb formerly hold at the Mirror?

Is "He was scathing in his opinion of the Mirror, where he had recently been employed as a senior sub-editor, and shared Murdoch's view that a paper's quality was best measured by its sales, and he regarded the Mirror as overstaffed, and primarily aimed at an ageing readership." the correct answer?
Available choices: A). yes. B). no.
A).