Which network topology connects all nodes in a linear

Give one word substitutes for the following from the choices given below them.

Select the option that can be used as a one-word substitute for the underlined group  of words.

I sit behind the counter and wait for a customer to come in and by something, but they all walk past the window as though the place were invisible.

She leans back onto the couch, giggling as I swing a makeshift pendulum before her eyes and lower my voice .

Select the most appropriate meaning of the highlighted idiom.

He met his old enemy and ruined his day as he did not want to catch a tartar .

Select the most appropriate option to substitute the highlighted segment. If no substitution is required select 'No substitution'.

In the following question, out of the given alternatives, choose the best one which expresses the meaning of the given word.

Quell