Step 1: Recall the stages of the EIA process.
The Environmental Impact Assessment (EIA) process generally follows the sequence:
\[
\boxed{
\text{Screening}
\rightarrow
\text{Scoping}
\rightarrow
\text{Baseline data collection}
\rightarrow
\text{Impact assessment}
\rightarrow
\text{Public consultation}
\rightarrow
\text{Decision making}.
}
\]
Step 2: Identify the first stage.
The process begins with
\[
\boxed{\text{Screening},}
\]
which determines whether a project requires an Environmental Impact Assessment.
Hence,
\[
\boxed{(A)}
\]
is the correct answer.