At times, worrying is a normal, ________ response to a difficult event or situation-a loved one being injured in an accident, for example.

1. A.
   effective
2. B.
   individual
3. C.
   inevitable
4. D.
   unfavorable

At times ,worrying is a normal, ________response to a difficult event or situation—a loved one being injured in an accident , for example.

A．effective              B．individual             C．inevitable             D．unfavorable

At times ,worrying is a normal,        response to a difficult event or situation―a loved one being injured in an accident , for example.

       A．effective              B．individual             C．inevitable             D．unfavorable

At times, worrying is a normal, ________ response to a difficult event or situation – a loved one being injured in an accident, for example.

    A. effective                        B. individual

    C. inevitable                       D. unfavorable

At times, worrying is a normal, ________ response to a difficult event or situation --- a loved one being injured in an accident, for example.