SOLUTION
The product of a variable and a coefficient in an algebraic expression are written together, such that the coefficient comes before the variable
[tex]\begin{gathered} \text{given a variable=a, coefficient =5} \\ \text{the product of the expression is }5\times a=5a \end{gathered}[/tex]
Hence from the option given in the questions,
[tex]\begin{gathered} 11c, \\ \frac{1}{2}t \\ \text{and } \\ j.4=4j \end{gathered}[/tex]
Are the right expression for the product a variable and coefficient
Therefore options A, B and D are the correct options
