Determine if the sentence is true based on the text below:
something was amiss
Select from: a. Yes b. No c. It's impossible to say
Nevertheless, her heart sank at the thought of spending an evening with him in his present state of mind, and she was tempted to invent a sore throat in order to get out of it. But he had been very helpful over the Puddephat business, she admitted to herself, and his moods were unpredictable - he might be on top of the world by the time he arrived at the cinema. ''I'm still keen if you are '' she said brightly pretending she had not noticed anything was amiss.
a.