When a general contractor's estimator found out that he$/$she will only get one

quotation from the metal guard rail subcontractors $1$ day before the bid closing date,

which following actions should be the best practice?

Call his$/$her friends to find more subcontractors.

Prepare his$/$her own estimate.

Doing nothing and wait for the only quotation.

Request for quotations again to all the subcontractors.

Tell the only subcontractor that they are the only one who will provide the

quotation and ask them double check their numbers to make sure there is no

mistake in their price.