Which of the following sets of statements will set floating point output to the stream outStream to fixed point with set 3 places of decimals? In the explanation, you must give any necessary #include directives and using directives or declarations.
a) ```
outStream.setf(ios::fixed);
outStream.setf(ios::showpoint);
outStream.precision(2);
```
b) ```
outStream.setf(ios::fixed | ios::showpoint);
outStream << setprecision(2);
```
c) ```
outStream << setflag(ios::fixed);
outStream << setflag(ios::showpoint);
outStream << setprecision(2);
```
d)
```
outStream.flags(ios::fixed);
outStream.flags(ios::showpoint);
outStream.precision(2);
```
a) ```
outStream.setf(ios::fixed);
outStream.setf(ios::showpoint);
outStream.precision(2);
```
and
b) ```
outStream.setf(ios::fixed | ios::showpoint);
outStream << setprecision(2);
```
c) is an incorrect use of manipulators and non-manipulators. d) is a misuse of the flags member function.
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